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-: 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.
- Acuity, auditory
Acuity, auditory: The clearness of hearing, a measure of how well a person hears.
Acupressure: A traditional Chinese medicine bodywork technique based on the principles of acupuncture. Acupressure is the application of pressure rather than needles on specific points on the body to control symptoms such as pain or nausea.