OPERCULUM
Scrabble letter values: O1P3E1R1C3U1L1U1M3 = 15
Definition
- noun a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted.
Scrabble letter values: O1P3E1R1C3U1L1U1M3 = 15