Flan″nel (flăn″nĕl), n. [F. flanelle, cf. OF. flaine a pillowcase, a mattress (?); fr. W. gwlanen flannel, fr. gwlan wool; prob. akin to E. wool. Cf. Wool.] A soft, nappy, woolen cloth, of loose texture. Shak.
Adam's flannel. (Bot.) See under Adam. — Canton flannel, Cotton flannel. See Cotton flannel, under Cotton.