Chem. Also lilacin. [f. LILAC + -INE. Cf. F. lilacine.] A crystalline substance obtained from the lilac, Syringa vulgaris; now called SYRINGIN.
1842. Pharmaceutical Jrnl., I. 557. The lilacine appears to be combined in the lilac with malic acid.
1844. in Hoblyn, Dict. Med. Terms; and in recent Dicts.