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| This glossary contains: 19186 medical terms |
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Anaphylaxis
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Anaphylaxis Immediate hypersensitivity response to antigenic challenge, mediated by IgE and mast cells. It is a life-threatening allergic reaction, caused by the release of pharmacologically active agents.
RELATED TERMS--------------------------------------
Hypersensitivity
State of reactivity to antigen that is greater than normal for the antigenic challenge; hypersensitivity is the same as allergy and denotes a deleterious outcome rather than a protective one.
SIMILAR TERMS--------------------------------------
Anaphase
The stage in mitosis or meiosis during which the sister chromatids (mitosis) or homologous chromosomes (meiosis) separate and migrate toward the opposite poles of the cell.
Anaphia
The inability to feel touch. From the Greek prefix an, not + Greek haphe, touch = inability to (feel) touch. A person with anaphia is said to be anaptic.
Anaphylactic shock
A severe and sometimes life-threatening immune system reaction to an antigen that a person has been previously exposed to. The reaction may include itchy skin, edema, collapsed blood vessels, fainting, and difficulty in breathing.
Anaphylactoid purpura
See: Sch”nlein-Henoch purpura.
Anaphylatoxin
Substance capable of releasing histamine from mast cells.
Anaplasia
Characteristics of a cell (structure and orientation) that make it identifiable as a cancer cell. Malignant.
Anaplasmosis
A tick-borne disease of cattle, sheep, and related ruminants caused by a microorganism called Anaplasma marginale and characterized by anemia and jaundice. Also called gallsickness and gall sickness.
Anaplastology
The art and science of restoring a malformed or absent part of the human body through artificial means. An anaplastologist makes prosthetic devices. From the Greek ana, again, + plastos, formed. See also: Prosthesis.
Anaprox
See: Naproxen.
Anaprox ds
Anaprox ds 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): naproxen sodium.
Anaptic
Suffering from an impaired sense of touch, (a state called anaphia) or tactile anesthesia. An anaptic person has anaphia (an, not + Greek haphe, touch = inability to (feel) touch.
PREVIOUS AND NEXT TERMS--------------------------------------
Allergen
An antigen responsible for producing allergic reactions by inducing IgE formation.
Allogeneic
Having a genetic dissimilarity within the same species.
Allograft
A tissue transplant (graft) between two genetically nonidentical members of a species.
Allotypes
Antigenic determinants that are present in allelic (alternate) forms. When used in association with immunoglobulin, allotypes describe allelic variants of immunoglobulins detected by antibodies raised between members of the same species.
Anaphylatoxin
Substance capable of releasing histamine from mast cells.
Anaphylaxis
Antigen-binding site
The part of an immunoglobulin molecule that binds antigen specifically.
Antigen receptor
The specific antigen-binding receptor on T or B lymphocytes; these receptors are transcribed and translated from rearrangements of V genes.
Antigenic determinant
A single antigenic site or epitope on a complex antigenic molecule or particle.
Antigen processing
Large molecules are broken down (processed) within macrophages into peptides and presented within the groove of MHC molecules.
RELATED TERMS--------------------------------------
Hypersensitivity
State of reactivity to antigen that is greater than normal for the antigenic challenge; hypersensitivity is the same as allergy and denotes a deleterious outcome rather than a protective one.
SIMILAR TERMS--------------------------------------
Anaphase
The stage in mitosis or meiosis during which the sister chromatids (mitosis) or homologous chromosomes (meiosis) separate and migrate toward the opposite poles of the cell.
Anaphia
The inability to feel touch. From the Greek prefix an, not + Greek haphe, touch = inability to (feel) touch. A person with anaphia is said to be anaptic.
Anaphylactic shock
A severe and sometimes life-threatening immune system reaction to an antigen that a person has been previously exposed to. The reaction may include itchy skin, edema, collapsed blood vessels, fainting, and difficulty in breathing.
Anaphylactoid purpura
See: Sch”nlein-Henoch purpura.
Anaphylatoxin
Substance capable of releasing histamine from mast cells.
Anaplasia
Characteristics of a cell (structure and orientation) that make it identifiable as a cancer cell. Malignant.
Anaplasmosis
A tick-borne disease of cattle, sheep, and related ruminants caused by a microorganism called Anaplasma marginale and characterized by anemia and jaundice. Also called gallsickness and gall sickness.
Anaplastology
The art and science of restoring a malformed or absent part of the human body through artificial means. An anaplastologist makes prosthetic devices. From the Greek ana, again, + plastos, formed. See also: Prosthesis.
Anaprox
See: Naproxen.
Anaprox ds
Anaprox ds 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): naproxen sodium.
Anaptic
Suffering from an impaired sense of touch, (a state called anaphia) or tactile anesthesia. An anaptic person has anaphia (an, not + Greek haphe, touch = inability to (feel) touch.
PREVIOUS AND NEXT TERMS--------------------------------------
Allergen
An antigen responsible for producing allergic reactions by inducing IgE formation.
Allogeneic
Having a genetic dissimilarity within the same species.
Allograft
A tissue transplant (graft) between two genetically nonidentical members of a species.
Allotypes
Antigenic determinants that are present in allelic (alternate) forms. When used in association with immunoglobulin, allotypes describe allelic variants of immunoglobulins detected by antibodies raised between members of the same species.
Anaphylatoxin
Substance capable of releasing histamine from mast cells.
Anaphylaxis
Antigen-binding site
The part of an immunoglobulin molecule that binds antigen specifically.
Antigen receptor
The specific antigen-binding receptor on T or B lymphocytes; these receptors are transcribed and translated from rearrangements of V genes.
Antigenic determinant
A single antigenic site or epitope on a complex antigenic molecule or particle.
Antigen processing
Large molecules are broken down (processed) within macrophages into peptides and presented within the groove of MHC molecules.
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This dictionary contains 19186 terms.
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