Aerobic
Aerobic: Oxygen-requiring. Aerobic bacteria need oxygen to grow. Aerobic exercise requires the heart and lungs to work harder to meet the body’s increased oxygen demand.
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Aer-, aero-: Prefix indicating air or gas, such as aerogastria (excess stomach gas).
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- AID (artificial insemination by donor)
AID (artificial insemination by donor): A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the uterus) into the uterus (the womb) to deposit a sperm sample from a donor other than the woman’s mate directly into the uterus. The purpose of this procedure is to achieve fertilization […]
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Acquired immunodeficiency syndrome, a syndrome caused by infection with the human immunodeficiency virus (HIV), with ensuing compromise of the body’s immune system. Features include deficiency of certain types of leukocytes, especially T cells; infection with opportunistic infections that take advantage of the impaired immune response, such as tuberculosis, bacterial pneumonia, human herpes virus, or toxoplasmosis; […]
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