Enter a clue or pattern or both:
The Clue
Use pumice on, perhaps (9 letter answer)
The Answer
EXFOLIATE
Tags
Notes
The answer EXFOLIATE is so rare that it appears less than once every 2500 puzzles.
Definition
EXFOLIATE as a verb:
1. spread by opening the leaves of
2. cast off in scales, laminae, or splinters
3. remove the surface, in scales or laminae
4. come off in a very thin piece
5. grow by producing or unfolding leaves; "plants exfoliate"