polyester fiber(n = noun.substance) - a quick-drying resilient synthetic fiber consisting primarily of polyester;
is a kind of polyester

acrylic fiber, animal fiber, bast fiber, castor fiber, cotton fiber, fiber, fiber bundle, fiber optic cable, fiber optics, glass fiber, man-made fiber, medullated nerve fiber, motor nerve fiber, muscle fiber, myelinated nerve fiber, natural fiber, nerve fiber, optical fiber, plant fiber, polyester, polyester fabric, purkinje fiber, staple fiber, striated muscle fiber, synthetic fiber, tampico fiber, vulcanized fiber