Enter a clue or pattern or both:
The Clue
Caulks (8 letter answer)
The Answer
SEALANTS
Tags
Notes
The answer SEALANTS is so rare that it appears less than once every 2500 puzzles.
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Radiator features
Definition
SEALANT as a noun:
1. (sealant, sealer) = a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)