a crystalline, basic organic compound, (CH)NCHCOO, obtained from beet sugar or prepared synthetically
Origin of betaineClassical Latin beta, beet + -ine
- 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.
- Any of several alkaloids with similar structures.
Origin of betaineLatin b&emacron;ta, beet + –ine2.
(countable and uncountable, plural betaines)
- (uncountable, organic chemistry) A sweet, crystalline compound (not an alkaloid), trimethylammoniumacetate, found in sugar beet and similar plants, sometimes used to treat muscular degeneracy; the zwitterion (CH3)3N+CH2COO-
- (countable, organic chemistry) Any derivative of this compound.
- (countable, organic chemistry, by extension) Any similar compound, based on sulfur or phosphorus etc, having an onium ion with no hydrogen atom adjacent to the anionic atom.