Definition of umbo Umbo
We found 10 definitions of umbo from 5 different sources.
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What does umbo mean?
WordNet
NounPlural: umboes |
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| umbo - a slight rounded elevation where the malleus attaches to the eardrum | ||
| convex shape, convexity a shape that curves or bulges outward | ||
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Wiktionary 
- umbo (Noun)
A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear. - umbo (Noun)
One of the lateral prominence just above the hinge of a bivalve shell. - umbo (Noun)
A bump or protrusion on the top of the cap. - umbo (Noun)
The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
Webster DictionaryWebster's Unabridged Dictionary 📘
- umbo (n.)
The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike. - umbo (n.)
A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvae of echinoderms or in the tympanic membrane of the ear. - umbo (n.)
One of the lateral prominence just above the hinge of a bivalve shell.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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umbo
um′bō, n. the boss of a shield: a knob: the point of a bivalve shell immediately above the hinge:—pl. Umbō′nes, Um′bos.—adjs. Um′bōnal, protuberant; Um′bōnāte, -d (bot.), having a central umbo, boss, or low rounded projection.—n. Umbonā′tion.—adjs. Umbon′ic; Umbon′ulate. [L.]
Part of speech
🔤- umbo, noun, singular of umbos.
Pronunciation
Sign Language
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