Definitions for umbonate-nɪt, -ˌneɪt
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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.)
Wiktionary
umbonate(Adjective)
Having an umbo
Webster Dictionary
Umbonate(adj)
alt. of Umbonated
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