释义 |
lev·an \ˈleˌvan\ noun (-s) Etymology: lev- + -an : any of a group of sparingly soluble levorotatory polysaccharides (C6H10O5)n composed of levulose units of the furanose type and formed especially from sucrose solutions by the action of various bacteria (as Bacillus subtilis or B. mesentericus) — compare dextran |