Alpha-hemolytic streptococci
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- Alpha-hydroxy acid
noun a type of organic acid, commonly used in skin-care preparations, that has a hydroxyl group attached to the carbon atom next to the carbon atom carrying the carboxyl group alpha-hydroxy acid al·pha-hy·drox·y acid (āl’fə-hī-drŏk’sē) n. Any of various fruit acids with the capacity to trap moisture in the skin and initiate formation of collagen.
- Alpha-linolenic acid
noun another name for linolenic acid
- Alpha-lipoprotein
alpha-lipoprotein alpha-lipoprotein n. See high-density lipoprotein.
- Alpha-omega
the beginning and the end. Rev. 1:8. the basic or essential element or elements: the alpha and omega of political reform. noun the first and last, a phrase used in Revelation 1:8 to signify God’s eternity the basic reason or meaning; most important part alpha and omega [(al-fuh; oh-may-guh, oh-meg-uh, oh-mee-guh)] The beginning and the […]
- Alpha-waves
a pattern of slow brain waves (alpha waves) in normal persons at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind. noun (physiol) the normal bursts of electrical activity from the cerebral cortex of a drowsy or inactive person, occurring at a frequency of 8 to 12 hertz […]