UMBOS
9
Scrabble
12
WWF
U(1) M(3) B(3) O(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane. For example the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear.
- One of the lateral prominences just above the hinge of a bivalve shell.
- A bump or protrusion on the top of the cap.
- The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
Source: Wiktionary
