Definitions for umboˈʌm boʊ; ʌmˈboʊ niz
Random House Webster's College Dictionary
um•boˈʌm boʊ; ʌmˈboʊ niz(n.)(pl.)um•bo•nes; um•bos.
a boss on a shield.
Category: Heraldry
any similar boss or protuberance.
the beak of a bivalve shell; the protuberance of each valve above the hinge.
Category: Zoology
the raised area on the inner surface of the tympanic membrane, where the malleus is attached.
Category: Anatomy
Origin of umbo:
1715–25; < L umbō; akin to umbilīcus (see umbilicus )
um′bo•nate-nɪt, -ˌneɪt(adj.)
Princeton's WordNet
umbo(noun)
a slight rounded elevation where the malleus attaches to the eardrum
Wiktionary
umbo(Noun)
A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvu00E6 of echinoderms or in the tympanic membrane of the ear.
umbo(Noun)
One of the lateral prominence just above the hinge of a bivalve shell.
umbo(Noun)
A bump or protrusion on the top of the cap.
umbo(Noun)
The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
Origin: Borrowed from umbo
Webster Dictionary
Umbo(noun)
the boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike
Umbo(noun)
a boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvae of echinoderms or in the tympanic membrane of the ear
Umbo(noun)
one of the lateral prominence just above the hinge of a bivalve shell
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