\Worm"-eat`en\, a. 1. Eaten, or eaten into, by a worm or by worms; as, worm-eaten timber. Concave as a covered goblet, or a worm-eaten nut. --Shak. 2. Worn-out; old; worthless. [R.] --Sir W. Raleigh. -- {Worm"-eat`en*ness}, n. [R.] --Dr. John Smith.