Definition of Umbo in English :

Define Umbo in English

Umbo meaning in English

Meaning of Umbo in English

Pronunciation of Umbo in English

Umbo pronunciation in English

Pronounce Umbo in English


see synonyms of umbo


1. umbo

a slight rounded elevation where the malleus attaches to the eardrum

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of umbo
nounWord forms: plural umbones (ʌmˈbəʊniːz ) or umbos
a small hump projecting from the centre of the cap in certain mushrooms
a hooked prominence occurring at the apex of each half of the shell of a bivalve mollusc
3. anatomy
the slightly convex area at the centre of the outer surface of the eardrum, where the malleus is attached on the internal surface
a large projecting central boss on a shield, esp on a Saxon shield

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of umbo
nounWord forms: plural umˈbones (ʌmˈboʊniz ; umbōˈnēz) or ˈumbos
the boss, or knob, at the center of a shield
something resembling this
; specif.,
the elevation beside the hinge on each half of a bivalve shell
the prominence on the eardrum at the point of attachment of the malleus

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of umbo
n. pl. um·bo·nes (ŭm-bōnēz) or um·bos
1. The boss or knob at the center of a shield.
a. Biology A knoblike protuberance arising from a surface, as the prominence near the hinge of a bivalve shell or the raised area in the center of the cap of a mushroom.
b. Anatomy A small projection at the center of the outer surface of the eardrum.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.