OTHER WORDS FROM umbonalpost·um·bo·nal, adjectivepre·um·bo·nal, adjectivesub·um·bo·nal, adjective
Words nearby umbonal
How to use umbonal in a sentence
Valves smooth, thin, brittle; scuta with internal umbonal teeth on both sides.
Right-hand scutum alone furnished with an internal umbonal tooth: uppermost part of peduncle dark-coloured.
Its shell is considerably twisted just below the umbonal region, while its whole surface is densely striated.The Sea-beach at Ebb-tide|Augusta Foote Arnold
Ligament wanting; shell gaping, with a styloid apophysis in the umbonal cavities.