WordReference Random House Unabridged Dictionary of American English © 2026
fi•ber•fill
(fī′bər fil′),USA pronunciation n.
- Textilessynthetic fibers, as polyester, used as a filling or insulating material for pillows, cushions, comforters, winter garments, etc.
- fiber + fill 1960–65, American.
'fiberfill' also found in these entries (note: many are not synonyms or translations):