a. [ LL. amentaceus. ] (Bot.) (a) Resembling, or consisting of, an ament or aments; as, the chestnut has an amentaceous inflorescence. (b) Bearing aments; having flowers arranged in aments; as, amentaceous plants. [ 1913 Webster ]

a. [ L. atramentum ink, fr. ater black. ] Black, like ink; inky; atramental. [ Obs. ] Derham. [ 1913 Webster ]

a. [ See Nucament. ] (Bot.) Like a nut either in structure or in being indehiscent; bearing one-seeded nutlike fruits. [ Written also nucumentaceous. ] [ 1913 Webster ]

{ } a. [ L. pergamena parchment. See Parchment. ] Like parchment. [ 1913 Webster ]

a. (Bot.) Covered with ramenta. [ 1913 Webster ]