Crossword clues for Knots in cotton fibers. 4 letters:NEPSKnots in cotton fibers.NEPSKnots in cotton fiberNEPCotton fiber knot.NEPKnot in cotton fiber.NEPLittle knot in cotton fibers.NEPLittle knot in cotton fiber.NEPLittle knots in cotton fiber.NEPFiber knots formed in cotton ginning.