from the GNU version of the Collaborative International Dictionary of English
- n. Any one of numerous species of small white polished marine shells of the genus Olivella.
from The Century Dictionary and Cyclopedia
- n. A shell of the genus Olivella, of about the size and whiteness of a grain of rice: sometimes extended to similar shells of the family Olividæ. See cut under olive-shell.
- n. In Australia, any one of various species of Truncatella, a small marine mollusk. The shell is used for necklaces and derives its name from its resemblance to grains of rice.
Sorry, no etymologies found.