Definition of: crumb

(krum) noun
1. A small bit, as of crumbled bread.
2. A morsel.
3. The soft inner part of a loaf, as distinguished from the crust.
—v.t.
1. To break into small pieces with the fingers; crumble.
2. In cooking, to dress or cover with bread crumbs.
3. Colloq. To brush crumbs from. Also crum. [OE cruma; b added on analogy with dumb, lamb, etc.]