Definition of Umbo

1. Noun. A slight rounded elevation where the malleus attaches to the eardrum.

Group relationships: Eardrum, Myringa, Tympanic Membrane, Tympanum
Generic synonyms: Convex Shape, Convexity



Definition of Umbo

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

Definition of Umbo

1. Noun. (biology) 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. ¹

2. Noun. (zoology) One of the lateral prominence just above the hinge of a bivalve shell. ¹

3. Noun. (mycology) A bump or protrusion on the top of the cap. ¹

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

¹ Source: wiktionary.com

Definition of Umbo

1. the rounded elevation at the center of a shield [n -BONES or -BOS] : UMBONAL, UMBONATE, UMBONIC [adj]

Medical Definition of Umbo

1. The area on the tympanic membrane where the malleus attaches. (27 Sep 1997)

Umbo Pictures

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Lexicographical Neighbors of Umbo

umbilicated
umbilication
umbilications
umbilici
umbilicomammillary triangle
umbilicoplasties
umbilicoplasty
umbilicovesical fascia
umbilicus
umbilicuses
umbite
umble pie
umble pies
umbles
umbo (current term)
umbo membranae tympani
umbo of tympanic membrane
umboes
umbonal
umbonate
umbones
umbonic
umbos
umbozerite
umbra
umbra recta
umbra versa
umbraculiferous
umbraculiform

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