LIGNIFICATION
Lig`ni*fi*ca"tion, n. Etym: [Cf. F. lignification. See Lignify.]
(Bot.)
Defn: A change in the character of a cell wall, by which it becomes harder. It is supposed to be due to an incrustation of lignin.
LIGNIFORM
Lig"ni*form, a. Etym: [L. lignum wood + -form: cf. F. ligniforme.]
Defn: Like wood.
LIGNIFY
Lig"ni*fy, v. t. [imp. & p. p. Lignified; p. pr. & vb. n.
Lignifying.] Etym: [L. lignum wood + -fy: cf. F. lignifier.] (Bot.)
Defn: To convert into wood or into a ligneous substance.
LIGNIFY
Lig"ni*fy, v. i. (Bot.)
Defn: To become wood.
LIGNIN
Lig"nin, n. Etym: [L. lignum wood: cf. F. lignine.] (Bot.)
Defn: A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.