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Umbo   Listen
noun
Umbo  n.  (pl. L. umbones, E. umbos)  
1.
The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
2.
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.
3.
(Zool.) One of the lateral prominences just above the hinge of a bivalve shell.





Collaborative International Dictionary of English 0.48


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Words linked to "Umbo" :   convex shape, tympanic membrane, eardrum, tympanum, convexity, myringa


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