D defs.my
Entry 1 sense Webster, 1913

Lignin

/(lĭg"nĭn)/ · Lig·nin · IPA /ˈlɪɡ.nɪn/
01 n. A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
  1. 1.
    A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.(Bot.)