a. Bot. [f. prec. + -ACEOUS.] Of or pertaining to the Amaryllidaceæ, a Nat. Ord. of plants, of which Amaryllis, Narciss, and Snowdrop are examples.
1837. W. Herbert, Amaryllidaceæ, 5. Newly introduced Amaryllidaceous plants.
1866. T. Moore, in Treas. Bot., 48. Amaryllis, the type of the amaryllidaceous family.
