A univalve mollusk of the genus Haliotis. The shell is lined with mother-of-pearl, and used for ornamental purposes; the sea-ear. Several large species are found on the coast of California, clinging closely to the rocks.
- Any of various large edible marine gastropods of the genus Haliotis, having an ear-shaped shell with a row of holes along the outer edge. The colorful pearly interior of the shell is often used for making ornaments. Also called ear shell.