| 释义 | 
		ser·ine \ˈseˌrēn, ˈsiˌ-, -_rə̇n\ noun (-s) Etymology: International Scientific Vocabulary sericin + -ine; probably originally formed in German  : a crystalline amino acid HOCH2CH(NH2)COOH known in three optically isomeric forms; especially  : the levorotatory l-form obtained by hydrolysis of many proteins (as sericin, fibroin, or casein) or of various cephalins; β-hydroxy-alanine |