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lignin 音标拼音: [l'ɪgnɪn] n. 木质素 木质素 lignin n 1: a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants Lignin \Lig"nin\ (l[i^]g"n[i^]n), n. [L. lignum wood: cf. F.
lignine.] (Bot.) A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents. [1913 Webster] Note: Recent authors have distinguished four forms of this substance, naming them lignose, lignin, lignone, and lignireose. [1913 Webster]
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