Dictionary
umbo
noun um·bo \ˈəm-(ˌ)bō\
plural um·bo·nes \ˌəm-ˈbō-(ˌ)nēz\ or umbos
Definition of UMBO
1
: the boss of a shield
2
: a rounded elevation: as a : an inward projection of the tympanic membrane of the ear b : one of the lateral prominences just above the hinge of a bivalve shell
— um·bo·nal \ˈəm-bə-nəl, ˌəm-ˈbō-\ adjective
— um·bo·nate \ˈəm-bə-ˌnāt, ˌəm-ˈbō-nət\ adjective
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Origin of UMBO
Latin; akin to Latin umbilicus — more at navel
First Known Use: 1721
Medical Dictionary
umbo
noun um·bo \ˈəm-(ˌ)bō\
plural um·bo·nes \ˌəm-ˈbō-(ˌ)nēz\ or umbos
Medical Definition of UMBO
: an elevation in the tympanic membrane of the ear
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