be•ta•ine(bē′tə ēn′, -in; bi tā′ēn, -in),USA pronunciationn.[Chem., Pharm.]
Chemistry, Drugs, Drugsa colorless, crystalline, water-soluble, sweet-tasting alkaloid, C5H11NO2, usually obtained from sugar beets or synthesized from glycine, used chiefly in medicine.
Also, be•ta•in(bē′tə in, bi tā′-).USA pronunciation Also called lycine, oxyneurine, trimethylglycine.