In″grain′ (?; 277), a. [Pref. in- in + grain kermes. See Engrain, Grain.]
1. Dyed with grain, or kermes.
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.