WordReference Random House Unabridged Dictionary of American English © 2026
or•thot•ro•pous
(ôr tho′trə pəs),USA pronunciation adj.
- Botany(of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity.
- Neo-Latin orthotropus. See ortho-, -tropous
- 1820–30
'orthotropous' also found in these entries (note: many are not synonyms or translations):