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HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

choline

Noun

cho=line

WORDNET DICTIONARY

choline(n = noun.substance) Array - a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat; Array

choline, n. [Gr. bile.].

See Neurine. [1913 Webster]

choline, n. Biochem. a basic nitrogenous organic compound occurring widely in living matter.

Etymology

G Cholin f. Gk khole bile

For further exploring for "choline" in Webster Dictionary Online