tropeolaceo , a . ( From Tropaeolum , name of a genus of plants). 1. adj. Bot. Says of the Angiosperms dicotyledonous plants, closely related to the Geraniaceae. They are herbaceous, creeping or climbing, and have leaves opposite, petiolate, entire or lobed, flowers zigomorfas, with eight stamens and a long spur in the chalice, fleshy or dry fruit with seeds without albumen, and Tuberculous root, as the Nasturtium. U. t. c. s. f. 2. f. pl. Bot. Family of these plants. O RTOGR. ESCR. with initial may. .