D defs.my
Entry 1 sense Webster, 1913

Betaine

· Be·ta·ine · IPA
01 n. A nitrogenous base, C5H11NO2, produced artificially, and also occurring naturally in beet-root molasses and its residues, from which it is …
  1. 1.
    A nitrogenous base, C5H11NO2, produced artificially, and also occurring naturally in beet-root molasses and its residues, from which it is extracted as a white crystalline substance; -- called also lycine and oxyneurine. It has a sweetish taste.(Chem.) Also: lycine, oxyneurine