WordReference Random House Unabridged Dictionary of American English © 2026
nym•phae•a•ceous
(nim′fē ā′shəs),USA pronunciation adj.
- Plant Biologybelonging to the Nymphaeaceae, the water lily family of plants. Cf. water lily family.
- Greek nymphaîa, noun, nominal use of feminine of nymphaîos, sacred to the nymphs; see nymphaeum)) + -aceae -aceae) + -ous
- Neo-Latin Nymphaeace(ae) (Nymphae(a) the type genus (Latin: the water lily (