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|Look up umbo in Wiktionary, the free dictionary.|
Umbo may refer to:
- A shield boss
- umbo (mycology), at the top of some mushrooms
- The umbo of tympanic membrane - a part of the human body
- Umbo (bivalve) is the (often somewhat protruding) part of a Bivalve shell which was formed when the animal was a juvenile
- The first year's growth of a seed scale on a pine cone, showing up as a protuberance at the end of the two-year-old scale
- The tiny depression in the very center of the foveola, and corresponds to the foveal reflex.
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