A substance that is obtained from wheat germ oil or by synthesis, biologically exhibits the most vitamin E activity of the tocopherols, and is an antioxidant.
A water-insoluble alcohol that occurs in plant oils (especially wheat germ oil), egg yolks, and liver, and is also produced synthetically. Alpha-tocopherol is the principal form of vitamin E in the body. Chemical formula: C29H50O2. See more at vitamin E.
- Alpha wave
noun a normal rhythmic electrical pattern of 8-13 hertz (cycles per second) in a wakeful relaxed human brain; also called alpha rhythm Word Origin 1930-35 alpha wave n. See alpha rhythm.
- Alpha-adrenergic blocking agent
alpha-adrenergic blocking agent alpha-adrenergic blocking agent n. See alpha-blocker.
- Alpha-amino acid
alpha-amino acid 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.