Word:

Umbo

Um´bo
n.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.(Zool.) One of the lateral prominences just above the hinge of a bivalve shell.
Noun1.umbo - a slight rounded elevation where the malleus attaches to the eardrum
convex shape, convexity, eardrum, myringa, tympanic membrane, tympanum
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Umbellule
Umber
Umbery
Umbilic
Umbilical
umbilical cord
umbilical hernia
Umbilical point
Umbilical region
umbilical vein
umbilical vesicle
Umbilicate
Umbilication
Umbilicus
Umble pie
Umbles
-- Umbo --
Umbonate
Umbra
Umbra tree
Umbraculiferous
Umbraculiform
Umbrage
umbrageous
Umbrate
Umbratic
Umbratile
Umbratious
Umbre
Umbrel
Umbrella
Umbrella ant
umbrella arum
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