betaine /ˈbiːtəiːn/


I. noun [ mass noun]

[Chemistry] a crystalline compound with basic properties found in many plant juices.

●Chem. formula: (CH3)3N+—CH2CO2.
2. [ count noun]
[Chemistry] any zwitterionic compound of the type represented by betaine.
– origin mid 19th cent.: formed irregularly from Latin beta ‘beet’ (because originally isolated from sugar beet) + -ine4.

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