aráceo , a . ( From Arum , a genus of plants). 1. adj. Bot. Says plants, herbaceous, monocot Angiosperms some woody rhizomes or tubers, leaves alternate, heart-shaped or sagitales, flowers in spadix surrounded by a spathe, and fruit in Berry, albumen fleshy or starchy seeds; e.g., the ring, the arísaro and la cala. U t. c. s. f. 2. f. pl. Bot. These plant family. O RTOGR. ESCR. with may. initial.