WordReference Random House Unabridged Dictionary of American English © 2025
ac•an•tha•ceous
(ak′ən thā′shəs),USA pronunciation adj.
- Plant Biologyhaving prickly growths.
- Plant Biologybelonging to the plant family Acanthaceae. Cf. acanthus family.
- Neo-Latin Acanthace(ae) (see acanthus, -aceae) + -ous
- 1745–55