Umbo Definition

ŭmbō
umbones, umbos
noun
The boss, or knob, at the center of a shield.
Webster's New World
Something resembling this.
Webster's New World
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.
American Heritage
A small projection at the center of the outer surface of the eardrum.
American Heritage
(mycology) A bump or protrusion on the top of the cap.
Wiktionary

Other Word Forms of Umbo

Noun

Singular:
umbo
Plural:
umboes, umbones, umbos

Origin of Umbo

  • Latin umbō umbōn- nobh- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Borrowed from Latin umbo

    From Wiktionary

Umbo Sentence Examples

  • They protected themselves in battle with a large wooden or wicker shield, the centre of which was ornamented with an iron boss (umbo).

  • The ventral valve is usually the larger, and in many genera, such as Terebratula and Rhynchonella, has a prominent beak or umbo, with a circular or otherwise shaped foramen at or near its extremity, partly bounded by one or two plates, termed a deltidium.

  • The beak or umbo of each valve is prominent and rounded, and a number of sharp ridges and furrows radiate from the apex to the free edge of the shell, which is crenated.

Find Similar Words

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Words Starting With

UUMUMB

Words Ending With

OBOMBO

Unscrambles

umbo

Words Starting With U and Ending With O

Starts With U & Ends With OStarts With UM & Ends With OStarts With U & Ends With BO

Word Length

4 Letter Words4 Letter Words Starting With U4 Letter Words Ending With O