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| This glossary contains: 19186 medical terms |
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Active immunization
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Active immunizationThe act of artificially stimulating the body to develop antibodies against infectious disease by the administration of vaccines or toxoids.
RELATED TERMS--------------------------------------
Antibodies
Proteins produced by white blood cells. They confer immunity.
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
SIMILAR TERMS--------------------------------------
Acticort
Acticort is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): hydrocortisone.
Actidil
Actidil is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): triprolidine hydrochloride.
Actifed
Actifed is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): pseudoephedrine hydrochloride; triprolidine hydrochloride.
Actifed with codeine
Actifed with codeine is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): codeine phosphate; pseudoephedrine hydrochloride; triprolidine hydrochloride.
Actigall
Actigall is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): ursodiol.
Actimmune
Actimmune is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): interferon gamma-1b.
Actin-n
Actin-n is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): nitrofurazone.
Actinex
Actinex is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): masoprocol.
Acting out
This is the process of expressing unconscious emotional conflicts or feelings via actions rather than words. The person is not consciously aware of the meaning or etiology of such acts. Acting out may be harmful or, in controlled situations, therapeutic (e.g., children's play therapy).
Actinic
"Referring to the ultraviolet (UV) rays from sunlight and UV lamps. Sunburn is an actinic burn. An actinic keratosis is a skin lesion that is the consequence of chronic sun exposure. From the Greek ""aktis"" meaning ""ray."""
Actinic keratoses
Scaly, pink, gray or tan patches or bumps on the face or scalp, or on the back of the hands. Occur mostly on people who have light skin that has been damaged by the sun.
Actinic keratosis
A small rough spot on skin chronically exposed to the sun, precancerous, can develop into a skin cancer called squamous cell carcinoma, a process that typically takes years. Actinic keratoses occur most frequently in fair-skinned people. Common locations are the face, scalp, back of the neck, upper chest, forearm and back of the hand. Prevention is by minimizing sun exposure. Treatments include cryosurgery (freezing them with liquid nitrogen), cutting them away, burning them, putting 5-fluorouracil (5-FU) on them, and photodynamic therapy (which involves injecting into the bloodstream a chemical that collects in actinic keratoses and makes them more sensitive to exposure to a specialized form of light).
Actinolite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as translucent bright- to gray-green tough interlocking fibers which are flexible and elastic. Actinolite has not been used commercially, although it is sometimes a contaminant in asbestos-containing products.
Actinomyces
Actinomyces refers to soil-inhabiting saprophytes and disease-producing plant and animal parasites .
Actinomycetes
A group of gram-positive bacteria (order Actinomycetales) that produce various bioactive agents including antibiotics, enzymes, and vitamins. Streptomyces belong to this bacterial order.
Action potential
A photoreceptor's relative spectral sensitivity.
Action spectra
A photoreceptor's relative spectral sensitivity.
Action tremor
A tremor that increases when the hand is moving voluntarily.
Actiq
Actiq is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fentanyl citrate.
Actira
Actira is a prescription oral antibiotic with nearly 10 million patient uses worldwide. It works by killing the types of bacteria that most often cause common adult respiratory tract infections. Made by Bayer.
Actisite
Actisite is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): tetracycline hydrochloride.
Activase
Brand name of alteplase, a tissue plasminogen activator made by recombinant DNA technology. See: Tissue plasminogen activator.
Activated charcoal
Charcoal that has been heated to increase its absorptive capacity. Activated charcoal is sold as an over-the-counter (OTC) product to help relieve intestinal gas. It is also used to absorb poisons (as in gas mask filters), neutralize poisons that have been swallowed, and filter and purify liquids.
Activated leukocyte cell adhesion molecule
See: ALCAM.
Active euthanasia
"The active acceleration of a ""good"" death by use of drugs etc, whether by oneself or with the aid of a doctor. The word ""euthanasia"" comes from the Greek -- ""eu"" meaning ""goodly or well"" + ""thanatos"" meaning ""death."" So, euthanasia is literally the ""good death."" "
Active immunity
"The production of antibodies against a specific agent by the immune system. Active immunity can be acquired in two ways: by contracting an infectious disease -- such as, for example, chickenpox; or
Active tuberculosis
See: Tuberculosis, active.
Activella
Activella is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): estradiol; norethindrone acetate.
Activities of daily living (ADL)
The basic elements of personal care such as eating, washing and showering, grooming, walking, standing up from a chair and using the toilet. Instrumental ADL (IADLs) activities extend to non-personal care items
Activities of daily living (ADLs)
The things we normally do in daily living including any daily activity we perform for self-care (such as feeding ourselves, bathing, dressing, grooming), work, homemaking, and leisure. The ability or inability to perform ADLs can be used as a very practical measure of ability/disability in many disorders.
Activity, drug
A measure of the physiological response a drug produces in the body. A less active drug produces less response (and visa versa).
PREVIOUS AND NEXT TERMS--------------------------------------
Axillary hyperhidrosis
Excessive sweating from the armpits. Excessive underarm perspiration tends to start in late adolescence.
Axis
"The axis is the second cervical vertebra (symbol: C2). It is called the ""axis"" because the uppermost cervical vertebra (called the atlas) rotates about the odontoid process of C2. The joint between the axis and atlas is a pivot type of joint. It allows the head turn."
Azotemia
A higher than normal blood level of urea or other nitrogen containing compounds in the blood. The hallmark test is the serum BUN (blood urea nitrogen) level. Usually caused by the inability of the kidney to excrete these compounds.
AZT
Zidovudine (formerly called azidothymidine [abbreviated AZT]), a drug used against human immunodeficiency virus (HIV), the virus that causes AIDS. The brand name is Retrovir.
Acetylcholine (ACH, Ach)
The neurotransmitter substance at cholinergic synapses, which causes cardiac inhibition, vasodilation, gastrointestinal peristalsis, and other parasympathetic effects. It is liberated from preganglionic and postganglionic endings of parasympathetic fibers and from preganglionic fibers of the sympathetic as a result of nerve injuries, whereupon it acts as a transmitter on the effector organ; it is hydrolyzed into choline and acetic acid by acetylcholinesterase before a second impulse may be transmitted.
Active immunization
Aleukia
Absence or extremely decreased number of leukocytes in the circulating blood.
Actinolite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as translucent bright- to gray-green tough interlocking fibers which are flexible and elastic. Actinolite has not been used commercially, although it is sometimes a contaminant in asbestos-containing products.
Amosite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as straight, brittle fibers, light gray to pale brown in color. Commonly used in commercial asbestos products.
Amphibole
One of the two subgroups of minerals forming the asbestos group, distinguished by their chain-like crystal structure and chemical composition. Asbestos amphiboles include actinolite, amosite, anthophyllite, crocidolite, and tremolite.
Asbestos bodies (aka ferruginous bodies)
Asbestos bodies are a subset of ferruginous bodies, the structures formed when iron-protein deposition occurs on fibers in the body. Because asbestos is by far the most commonly occurring core material, the presence of ferruginous bodies in sputum indicates a significant past exposure to asbestos.
RELATED TERMS--------------------------------------
Antibodies
Proteins produced by white blood cells. They confer immunity.
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
SIMILAR TERMS--------------------------------------
Acticort
Acticort is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): hydrocortisone.
Actidil
Actidil is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): triprolidine hydrochloride.
Actifed
Actifed is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): pseudoephedrine hydrochloride; triprolidine hydrochloride.
Actifed with codeine
Actifed with codeine is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): codeine phosphate; pseudoephedrine hydrochloride; triprolidine hydrochloride.
Actigall
Actigall is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): ursodiol.
Actimmune
Actimmune is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): interferon gamma-1b.
Actin-n
Actin-n is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): nitrofurazone.
Actinex
Actinex is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): masoprocol.
Acting out
This is the process of expressing unconscious emotional conflicts or feelings via actions rather than words. The person is not consciously aware of the meaning or etiology of such acts. Acting out may be harmful or, in controlled situations, therapeutic (e.g., children's play therapy).
Actinic
"Referring to the ultraviolet (UV) rays from sunlight and UV lamps. Sunburn is an actinic burn. An actinic keratosis is a skin lesion that is the consequence of chronic sun exposure. From the Greek ""aktis"" meaning ""ray."""
Actinic keratoses
Scaly, pink, gray or tan patches or bumps on the face or scalp, or on the back of the hands. Occur mostly on people who have light skin that has been damaged by the sun.
Actinic keratosis
A small rough spot on skin chronically exposed to the sun, precancerous, can develop into a skin cancer called squamous cell carcinoma, a process that typically takes years. Actinic keratoses occur most frequently in fair-skinned people. Common locations are the face, scalp, back of the neck, upper chest, forearm and back of the hand. Prevention is by minimizing sun exposure. Treatments include cryosurgery (freezing them with liquid nitrogen), cutting them away, burning them, putting 5-fluorouracil (5-FU) on them, and photodynamic therapy (which involves injecting into the bloodstream a chemical that collects in actinic keratoses and makes them more sensitive to exposure to a specialized form of light).
Actinolite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as translucent bright- to gray-green tough interlocking fibers which are flexible and elastic. Actinolite has not been used commercially, although it is sometimes a contaminant in asbestos-containing products.
Actinomyces
Actinomyces refers to soil-inhabiting saprophytes and disease-producing plant and animal parasites .
Actinomycetes
A group of gram-positive bacteria (order Actinomycetales) that produce various bioactive agents including antibiotics, enzymes, and vitamins. Streptomyces belong to this bacterial order.
Action potential
A photoreceptor's relative spectral sensitivity.
Action spectra
A photoreceptor's relative spectral sensitivity.
Action tremor
A tremor that increases when the hand is moving voluntarily.
Actiq
Actiq is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fentanyl citrate.
Actira
Actira is a prescription oral antibiotic with nearly 10 million patient uses worldwide. It works by killing the types of bacteria that most often cause common adult respiratory tract infections. Made by Bayer.
Actisite
Actisite is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): tetracycline hydrochloride.
Activase
Brand name of alteplase, a tissue plasminogen activator made by recombinant DNA technology. See: Tissue plasminogen activator.
Activated charcoal
Charcoal that has been heated to increase its absorptive capacity. Activated charcoal is sold as an over-the-counter (OTC) product to help relieve intestinal gas. It is also used to absorb poisons (as in gas mask filters), neutralize poisons that have been swallowed, and filter and purify liquids.
Activated leukocyte cell adhesion molecule
See: ALCAM.
Active euthanasia
"The active acceleration of a ""good"" death by use of drugs etc, whether by oneself or with the aid of a doctor. The word ""euthanasia"" comes from the Greek -- ""eu"" meaning ""goodly or well"" + ""thanatos"" meaning ""death."" So, euthanasia is literally the ""good death."" "
Active immunity
"The production of antibodies against a specific agent by the immune system. Active immunity can be acquired in two ways: by contracting an infectious disease -- such as, for example, chickenpox; or
Active tuberculosis
See: Tuberculosis, active.
Activella
Activella is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): estradiol; norethindrone acetate.
Activities of daily living (ADL)
The basic elements of personal care such as eating, washing and showering, grooming, walking, standing up from a chair and using the toilet. Instrumental ADL (IADLs) activities extend to non-personal care items
Activities of daily living (ADLs)
The things we normally do in daily living including any daily activity we perform for self-care (such as feeding ourselves, bathing, dressing, grooming), work, homemaking, and leisure. The ability or inability to perform ADLs can be used as a very practical measure of ability/disability in many disorders.
Activity, drug
A measure of the physiological response a drug produces in the body. A less active drug produces less response (and visa versa).
PREVIOUS AND NEXT TERMS--------------------------------------
Axillary hyperhidrosis
Excessive sweating from the armpits. Excessive underarm perspiration tends to start in late adolescence.
Axis
"The axis is the second cervical vertebra (symbol: C2). It is called the ""axis"" because the uppermost cervical vertebra (called the atlas) rotates about the odontoid process of C2. The joint between the axis and atlas is a pivot type of joint. It allows the head turn."
Azotemia
A higher than normal blood level of urea or other nitrogen containing compounds in the blood. The hallmark test is the serum BUN (blood urea nitrogen) level. Usually caused by the inability of the kidney to excrete these compounds.
AZT
Zidovudine (formerly called azidothymidine [abbreviated AZT]), a drug used against human immunodeficiency virus (HIV), the virus that causes AIDS. The brand name is Retrovir.
Acetylcholine (ACH, Ach)
The neurotransmitter substance at cholinergic synapses, which causes cardiac inhibition, vasodilation, gastrointestinal peristalsis, and other parasympathetic effects. It is liberated from preganglionic and postganglionic endings of parasympathetic fibers and from preganglionic fibers of the sympathetic as a result of nerve injuries, whereupon it acts as a transmitter on the effector organ; it is hydrolyzed into choline and acetic acid by acetylcholinesterase before a second impulse may be transmitted.
Active immunization
Aleukia
Absence or extremely decreased number of leukocytes in the circulating blood.
Actinolite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as translucent bright- to gray-green tough interlocking fibers which are flexible and elastic. Actinolite has not been used commercially, although it is sometimes a contaminant in asbestos-containing products.
Amosite
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as straight, brittle fibers, light gray to pale brown in color. Commonly used in commercial asbestos products.
Amphibole
One of the two subgroups of minerals forming the asbestos group, distinguished by their chain-like crystal structure and chemical composition. Asbestos amphiboles include actinolite, amosite, anthophyllite, crocidolite, and tremolite.
Asbestos bodies (aka ferruginous bodies)
Asbestos bodies are a subset of ferruginous bodies, the structures formed when iron-protein deposition occurs on fibers in the body. Because asbestos is by far the most commonly occurring core material, the presence of ferruginous bodies in sputum indicates a significant past exposure to asbestos.
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This dictionary contains 19186 terms.
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