UMBO

umbo

(noun) a slight rounded elevation where the malleus attaches to the eardrum

Source: WordNet® 3.1


Etymology

Noun

umbo (plural umbones or umbos or umboes)

(biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane. For example the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear.

(zoology) One of the lateral prominences just above the hinge of a bivalve shell.

(mycology) A bump or protrusion on the top of the cap.

(historical) The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.

Anagrams

• ombu

Source: Wiktionary


Um"bo, n.; pl. L. Umbones, E. Umbos. Etym: [L.]

1. The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.

2. A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear.

3. (Zoöl.)

Definition: One of the lateral prominence just above the hinge of a bivalve shell.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

22 December 2024

SUNGLASSES

(noun) (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun; “he was wearing a pair of mirrored shades”


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