alpha-amino acid n.
Any of the 20 or so amino acids that has the amino and carboxyl groups attached to the same carbon atom, usually has an l-configuration, and is the chemical constituent of a protein.
- Alpha-aminosuccinic acid
alpha-aminosuccinic acid alpha-aminosuccinic acid al·pha-a·mi·no·suc·cin·ic acid (āl’fə-ə-mē’nō-sək-sĭn’ĭk, -ām’ə-nō-) n. See aspartic acid.
alpha-fucosidase alpha-fucosidase al·pha-fu·co·si·dase (āl’fə-fyōō-kō’sĭ-dās’, -dāz’) n. An enzyme that catalyzes the metabolism of fucose and fucose-containing compounds.
- Alpha-hemolytic streptococci
- 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.