1. of or pertaining to plants of the family Caryophyllaceae;
The Collaborative International Dictionary of English v.0.48:
Caryophyllaceous \Car`y*o*phyl*la"ceous\, a. [Gr. ? clove tree;
? nut + ? leaf.] (Bot.)
(a) Having corollas of five petals with long claws inclosed
in a tubular, calyx, as the pink.
(b) Belonging to the family of which the pink and the
carnation are the types.
WordNet (r) 3.0 (2006):
adj 1: of or pertaining to plants of the family Caryophyllaceae