Active immunity
Active immunity: Immunity produced by the body in response to stimulation by a disease-causing organism or other agent.
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- Activities of daily living (ADLs)
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
Activity, drug: A measure of the physiological response a drug produces in the body. A less active drug produces less response (and visa versa).
- Acu-
Acu-: A combining form indicating a relationship to a needle. As in acupuncture. From the Latin acus meaning needle.
- Acuity test, visual
Acuity test, visual: This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart itself — the usual one is called Snellen’s chart — is imprinted with block letters that line-by-line decrease in size, corresponding to the distance at which that line of letters is normally […]
- Acuity, visual
Acuity, visual: The clearness of vision, a measure of how well one sees.