FIBERGLASSES Scrabble 18 Words With Friends 21 Definition FIBERGLASSES is the plural of FIBERGLASS. noun FIBERGLASS: a covering material made of glass fibers in resins. Anagrams of FIBERGLASSES fibreglasses See all 758 words you can make from FIBERGLASSES → 12-letter words Words starting with F Words ending with S ← Unscramble different letters