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tr.v. in·grained, in·grain·ing, in·grains
1. To fix deeply or indelibly, as in the mind: "A system that had been ingrained for generations could not be easily undone by change from the top" (Doris Kearns Goodwin).
2. Archaic To dye or stain into the fiber of.
1. Deep-seated; ingrained.
2. Made of predyed fibers; thoroughly dyed: ingrain yarn.
3. Made of fiber or yarn dyed before weaving. Used especially of rugs.
1. Yarn or fiber dyed before manufacture.
2. An ingrain rug or carpet.
[Variant of engrain.]