lignin noun. ['lɪgnɪn] E19.
[formed as LIGNIFY + -IN¹.]
A cross-linked phenolic polymer which combines with cellulose to give woody plant tissue its rigidity.

Comb.:
lignin sulphonate a salt of a lignosulphonic acid, used industrially as a dispersant, binder, etc.

[TahlilGaran] English Dictionary ▲