lycine

from The Century Dictionary.

• noun A colorless compound, HON(CH₃)₃CH₂COOH, or, in the anhydrous form, , contained in sugar-beet juice, cotton-seeds, and other vegetable products, and in urine. It forms large crystals which become anhydrous at 100° C. and attract moisture from the air, and is of considerable importance in plant physiology. Also called betain, hydroxyneurine, or trimethylglyein.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A weak base identical with betaine; -- so called because found in the boxthorn (Lycium barbarum). See betaine.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry A weak base identical with betaine.