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umbonal
[ uhm-buh-nl ]
adjective
- having the shape or appearance of an umbo; bosslike:
an umbonal structure.
- of, relating to, or near the umbo:
the umbonal region.
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Other Words From
- post·umbo·nal adjective
- pre·umbo·nal adjective
- sub·umbo·nal adjective
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Word History and Origins
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Example Sentences
Valves smooth, thin, brittle; scuta with internal umbonal teeth on both sides.
From Project Gutenberg
Right-hand scutum alone furnished with an internal umbonal tooth: uppermost part of peduncle dark-coloured.
From Project Gutenberg
Its shell is considerably twisted just below the umbonal region, while its whole surface is densely striated.
From Project Gutenberg
Ligament wanting; shell gaping, with a styloid apophysis in the umbonal cavities.
From Project Gutenberg
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