Fou′mart′, n. [OE. folmard, fulmard; AS. fūl foul + mearð, meard, marten: cf. F. marte, martre. See Foul, a., and Marten the quadruped.] (Zoöl.) The European polecat; — called also European ferret, and fitchew. See Polecat. [Written also foulmart, foulimart, and fulimart.]