noun \ˈəm-(ˌ)bō\
plural um·bo·nes \ˌəm-ˈbō-(ˌ)nēz\ or umbos

Definition of UMBO

:  the boss of a shield
:  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

Illustration of UMBO

Origin of UMBO

Latin; akin to Latin umbilicus — more at navel
First Known Use: 1721

Rhymes with UMBO


noun \ˈəm-(ˌ)bō\   (Medical Dictionary)
plural um·bo·nes \ˌəm-ˈbō-(ˌ)nēz\ or umbos

Medical Definition of UMBO

: an elevation in the tympanic membrane of the ear


Next Word in the Dictionary: umbolateral
Previous Word in the Dictionary: umbles
All Words Near: umbo

Seen & Heard

What made you want to look up umbo? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More