a. Having knops or knobs; fastened as with buttons. [ Obs. ] Rom. of R. [ 1913 Webster ]
n. [ Cf. G. knopper. See Knop. ] (Zool.) A kind of gall produced by a gallfly on the cup of an acorn, -- used in tanning and dyeing. [ 1913 Webster ]
n. (Zool.) A bullfinch. [ Prov. Eng. ] [ 1913 Webster ]
interj. & adv. No. [ informal ] [ PJC ]