choline
Pronunciation: kō′lēn
Definition: agent found in most animal tissues either free or in combination as lecithin (phosphatidylcholine), acetate (acetylcholine), or cytidine diphosphate (cytidine diphosphocholine). It is included in the vitamin B complex. Several salts of choline are used in medicine.
Synonym(s): lipotropic factor, transmethylation factor
