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ambulatory
Able to walk. Not confined to bed.
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amenorrhea
Absence of menstrual periods.
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amnesia
Partial or total loss of memory, usually as the result of psychological trauma or stress, or physical damage to the…
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amnion
The membrane enclosing a developing fetus; it’s filled with a protective liquid called amniotic fluid.
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amputation
The surgical removal of a limb or other appendage because of damage by trauma or as a treatment for a…
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anaerobic exercise
Brief, intense exercise that leads to an oxygen debt in a certain area of tissue. Weight lifting is an…
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anaphylaxis
The most severe form of allergy, in which the person’s heart and lungs are unable to keep working, and death…
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androgen
Any substance that produces male characteristics. Testosterone and androsterone are natural androgens.
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anemia
A decreased ability of the blood to carry oxygen because of a reduction in either the number or quality of…
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anesthesia
Drug-induced loss of feeling or sensation.
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anesthetic
An agent used to produce anesthesia.
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aneurysm
A thin sac caused by a weakened area in the walls of blood vessels or the heart. As an aneurysm…
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angina pectoris
Chest pain caused by decreased oxygen delivery to the heart muscle.
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angioma
A noncancerous tumor made up of many blood vessels.
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anhidrosis
Absence of sweating. An inability to sweat greatly interferes with the body’s ability to control its internal temperature.
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ankylosis
Abnormal stiffening of a joint.
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anomaly
Deviation from normal.
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anorchism
Congenital absence of both testes.
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anorexia nervosa
An eating disorder manifested primarily by a loss of desire or willingness to eat for a variety of psychological…
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anosmia
Loss of the sense of smell.
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antepartum
Occurring before delivery of a baby.