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umbonal

[ uhm-buh-nl ]

/ ˈʌm bə nl /

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adjective

having the shape or appearance of an umbo; bosslike: an umbonal structure.

of, relating to, or near the umbo: the umbonal region.

Nearby words

Also um·bon·ic

[uhm-bon-ik] /ʌmˈbɒn ɪk/.

Origin of umbonal

1850–55; < Latin umbōn- (stem of umbō; see umbo) + -al¹

Related formspost·um·bo·nal, adjectivepre·um·bo·nal, adjectivesub·um·bo·nal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for umbonal

Ligament wanting; shell gaping, with a styloid apophysis in the umbonal cavities.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 1|Various
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