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| This glossary contains: 19186 medical terms |
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Dilation, pupil
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Dilation, pupilThis examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits your eye to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After the examination, your vision may (or may not) remain blurred for several hours.
RELATED TERMS--------------------------------------
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Eye
The organ of sight. The eye has a number of components. These components include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous.
Dilating
The widening and opening of the cervix caused by uterine contractions.
Pupil
A circular opening in the center of the iris. The size of the pupil changes according to the amount of light present. It is small in sunlight and large in a dark room.
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.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Vision
The sense of sight.
SIMILAR TERMS--------------------------------------
Dilacor xr
Dilacor xr is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): diltiazem hydrochloride.
Dilantin
Dilantin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilantin-125
Dilantin-125 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilantin-30
Dilantin-30 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilatation
The increase in size of a blood vessel.
Dilatation and curettage
A minor operation in which the cervix is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument shaped like a spoon. This procedure also is called D and C.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Dilated cardiomyopathy
A disease of the myocardium (heart muscle) that causes the heart cavity to become stretched and enlarged, and the pumping capacity of the heart is reduced.
Dilated Pupil Examination
A necessary part of an examination for diabetic eye disease. Special drops are used to enlarge the pupils, enabling the doctor to view the back of the eye for damage.
Dilating
The widening and opening of the cervix caused by uterine contractions.
Dilation
The opening of the cervix during labor.
Dilation and Curettage (D and C)
Surgical procedure in which the cervix is dilated (widened) and the endometrium (lining of the uterus) is scraped away.
Dilation, pupil (test)
This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits the retina to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After the examination, your vision may (or may not) remain blurred and you may (or may not) be bothered by the brightness of the sun for several hours. The pupil, the opening of the iris, may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye.
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate passage of food and fluids.
Dilatrate-sr
Dilatrate-sr is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): isosorbide dinitrate.
Dilaudid
Dilaudid is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydromorphone hydrochloride.
Dilaudid-hp
Dilaudid-hp is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydromorphone hydrochloride.
PREVIOUS AND NEXT TERMS--------------------------------------
Dihydroorotate dehydrogenase
An enzyme necessary to pyrimidine synthesis and therefore essential to the production of DNA and RNA. The drug leflunomide (Arava), an immunomodulatory agent, acts by specifically inhibiting dihydroorotate dehydrogenase.
Dihydroxyacetone
Also known as DHA, the active ingredient in most sunless tanning lotions.
Dilatation and curettage
A minor operation in which the cervix is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument shaped like a spoon. This procedure also is called D and C.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Dilating
The widening and opening of the cervix caused by uterine contractions.
Dilation, pupil
Dilation, pupil (test)
This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits the retina to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After the examination, your vision may (or may not) remain blurred and you may (or may not) be bothered by the brightness of the sun for several hours. The pupil, the opening of the iris, may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye.
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate passage of food and fluids.
Dinucleotide
A sequence of 2 base pairs. A trinucleotide (a triplet of base pairs) may be split into a dinucleotide and a mononucleotide.
Dioxin
One of a number of poisonous petroleum-derived chemicals which are produced when herbicides (substances used for killing plants) are made or when plastics are burned. Dioxins are chemically dibenzo-p-dioxins. One of the best known is TCDD (2, 3, 7, 8-TCDD).
Dip, paraffin
A treatment for the symptoms of joint and muscle conditions, such as arthritis, that consists of melted mineral wax derived from petroleum applied to a body area. Paraffin dips can be especially helpful in relieving the pain and stiffness of arthritis involving the small joints of the hands when used as a small bath. The hands are repeatedly dipped into the melted, warm wax and the wax allowed to cool and harden around the sore joints. The paraffin is then removed by peeling off and can be remelted in the bath for repeated use.
RELATED TERMS--------------------------------------
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Eye
The organ of sight. The eye has a number of components. These components include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous.
Dilating
The widening and opening of the cervix caused by uterine contractions.
Pupil
A circular opening in the center of the iris. The size of the pupil changes according to the amount of light present. It is small in sunlight and large in a dark room.
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.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Vision
The sense of sight.
SIMILAR TERMS--------------------------------------
Dilacor xr
Dilacor xr is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): diltiazem hydrochloride.
Dilantin
Dilantin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilantin-125
Dilantin-125 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilantin-30
Dilantin-30 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): phenytoin.
Dilatation
The increase in size of a blood vessel.
Dilatation and curettage
A minor operation in which the cervix is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument shaped like a spoon. This procedure also is called D and C.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Dilated cardiomyopathy
A disease of the myocardium (heart muscle) that causes the heart cavity to become stretched and enlarged, and the pumping capacity of the heart is reduced.
Dilated Pupil Examination
A necessary part of an examination for diabetic eye disease. Special drops are used to enlarge the pupils, enabling the doctor to view the back of the eye for damage.
Dilating
The widening and opening of the cervix caused by uterine contractions.
Dilation
The opening of the cervix during labor.
Dilation and Curettage (D and C)
Surgical procedure in which the cervix is dilated (widened) and the endometrium (lining of the uterus) is scraped away.
Dilation, pupil (test)
This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits the retina to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After the examination, your vision may (or may not) remain blurred and you may (or may not) be bothered by the brightness of the sun for several hours. The pupil, the opening of the iris, may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye.
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate passage of food and fluids.
Dilatrate-sr
Dilatrate-sr is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): isosorbide dinitrate.
Dilaudid
Dilaudid is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydromorphone hydrochloride.
Dilaudid-hp
Dilaudid-hp is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydromorphone hydrochloride.
PREVIOUS AND NEXT TERMS--------------------------------------
Dihydroorotate dehydrogenase
An enzyme necessary to pyrimidine synthesis and therefore essential to the production of DNA and RNA. The drug leflunomide (Arava), an immunomodulatory agent, acts by specifically inhibiting dihydroorotate dehydrogenase.
Dihydroxyacetone
Also known as DHA, the active ingredient in most sunless tanning lotions.
Dilatation and curettage
A minor operation in which the cervix is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument shaped like a spoon. This procedure also is called D and C.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."
Dilating
The widening and opening of the cervix caused by uterine contractions.
Dilation, pupil
Dilation, pupil (test)
This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits the retina to be examined for signs of disease. To do this, drops are placed into the eye to dilate (widen) the pupil. After the examination, your vision may (or may not) remain blurred and you may (or may not) be bothered by the brightness of the sun for several hours. The pupil, the opening of the iris, may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye.
Dilator
A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a dilator procedure in order to open the esophagus for adequate passage of food and fluids.
Dinucleotide
A sequence of 2 base pairs. A trinucleotide (a triplet of base pairs) may be split into a dinucleotide and a mononucleotide.
Dioxin
One of a number of poisonous petroleum-derived chemicals which are produced when herbicides (substances used for killing plants) are made or when plastics are burned. Dioxins are chemically dibenzo-p-dioxins. One of the best known is TCDD (2, 3, 7, 8-TCDD).
Dip, paraffin
A treatment for the symptoms of joint and muscle conditions, such as arthritis, that consists of melted mineral wax derived from petroleum applied to a body area. Paraffin dips can be especially helpful in relieving the pain and stiffness of arthritis involving the small joints of the hands when used as a small bath. The hands are repeatedly dipped into the melted, warm wax and the wax allowed to cool and harden around the sore joints. The paraffin is then removed by peeling off and can be remelted in the bath for repeated use.
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This dictionary contains 19186 terms.
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