felted (Adjective) — Made by combining fibers with a binder using heat and pressure. ex. "felt is a felted cloth"
felted (Verb) — Mat together and make felt-like. ex. "felt the wool"
felted (Verb) — Cover with felt. ex. "felt a cap"
felted (Verb) — Change texture so as to become matted and felt-like. ex. "The fabric felted up after several washes"