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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.


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