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Shield protuberance
Answer for the clue "Shield protuberance ", 4 letters:
umbo
Alternative clues for the word umbo
Word definitions for umbo in dictionaries
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
"boss of a shield," 1921, from Latin umbo "shield-boss, knob, projection."
Wikipedia
Word definitions in Wikipedia
Umbo may refer to: Umbo of tympanic membrane – The central, most inverted portion of the ear drum A shield boss umbo (mycology) , at the top of some mushrooms Umbo (bivalve) is the (often somewhat protruding) part of a Bivalve shell which was formed when ...
Wiktionary
Word definitions in Wiktionary
n. 1 (context biology English) 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. 2 (context zoology English) One ...
Usage examples of umbo.
The edges were obtuse, the caps fleshy, then corky, smooth, the upper ends not regular, oblique in the form of an umbo or little knob, the pellicles or outside layers thin and easily separated.