umbonal

[uhm-buh-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.

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

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Historical Examples of umbonal