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[2x]

: Læ Lé L- L. La Lb Lc Ld Le Lf Lg Lh Li Lj Ll Lm Lo Lp Lr Ls Lt Lu Lv Lw Lx Ly

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HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

lignin

Noun

lig=nin

WORDNET DICTIONARY

lignin(n = noun.substance) - a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants;

Derived form adjective ligneous₁

lignin, n. [L. lignum wood: cf. F. lignine.].

A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents. [1913 Webster]

" Recent authors have distinguished four forms of this substance, naming them lignose, lignin, lignone, and lignireose." [1913 Webster]

lignin, n. Bot. a complex organic polymer deposited in the cell-walls of many plants making them rigid and woody.

Etymology

as LIGNI- + -IN

For further exploring for "lignin" in Webster Dictionary Online