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Umbo
(redirected from Umbo of tympanic membrane)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
umbo [′əm·bō]
(anatomy)
A rounded elevation of the surface of the tympanic membrane.
(invertebrate zoology)
A prominence above the hinge of a bivalve mollusk shell.

Umbo 

the iron central boss of a shield, which protected the warrior’s hand. Under the hemispherical or conical umbo was a crosspiece by which the shield was held. Shields with umbones were widely used in ancient Greece and Rome and in medieval Europe and Rus’.



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