What is mean by Lignified walls?
Lignification. Lignification (Science: botany) 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. The depositing of lignin in cell walls by plants that creates woodBesides, what is mean by Lignified?v. lig·ni·fied, lig·ni·fy·i...