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1. A sweet-tasting crystalline alkaloid, C5H11NO2, found in sugar beets and other plants, used to treat certain metabolic disorders, especially an enzyme defect that causes excessive levels of homocysteine in the blood and urine.
2. Any of several alkaloids with similar structures.
[Latin bēta, beet + -ine.]
betaine(ˈbiːtəˌiːn; -ɪn; bɪˈteɪiːn; -ɪn)
1. (Elements & Compounds) a sweet-tasting alkaloid that occurs in the sugar beet and other plants and in animals. Formula: C5H11NO2
2. (Chemistry) (plural) a group of chemical compounds that resemble betaine and are slightly basic zwitterions
[C19: from New Latin Bēta beet + -ine2]
be•ta•ine(ˈbi təˌin, -ɪn; bɪˈteɪ in, -ɪn)
a colorless crystalline alkaloid, C5H11NO2, usu. obtained from sugar beets or synthesized from glycine and used in medicine.