umbo

play
noun um·bo \ˈəm-(ˌ)bō\

Definition of umbo

plural

umbones

play \ˌəm-ˈbō-(ˌ)nēz\ or

umbos

  1. 1 :  the boss of a shield

  2. 2 :  a rounded elevation: such asa :  an inward projection of the tympanic membrane of the earb :  one of the lateral prominences just above the hinge of a bivalve shell

umbonal

play play \ˈəm-bə-nəl, ˌəm-ˈbō-\ adjective

umbonate

play play \ˈəm-bə-ˌnāt, ˌəm-ˈbō-nət\ adjective

Illustration of umbo

Origin and Etymology of umbo

Latin; akin to Latin umbilicus — more at navel


First Known Use: 1721


Medical Dictionary

umbo

play
noun um·bo \ˈəm-(ˌ)bō\

Medical Definition of umbo

plural

umbones

\ˌəm-ˈbō-(ˌ)nēz\play or

umbos

  1. :  an elevation in the tympanic membrane of the ear


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