2. Dyed before manufacture, -- said of the material of a textile
fabric; hence, in general, thoroughly inwrought; forming an essential
part of the substance.
Ingrain carpet, a double or two-ply carpet. -- Triple ingrain carpet, a
three- ply carpet.
In"grain`, n. An ingrain fabric, as a carpet.
In"grain` (?), v. t. [imp. & p. p. Ingrained (?); p. pr. & vb. n.
Ingraining.] [Written also engrain.]