SERINE Meaning of SERINE in English [ 'sɪəri:n , 'sɛr- ]■ noun Biochemistry a hydrophilic amino acid which is a constituent of most proteins.OriginC19: from L. sericum 'silk' + -ine 4 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004