Definitions

from The Century Dictionary.

  • Of or related to the Rissoidæ.
  • noun A gastropod of the family Rissoidæ.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidæ, found both in fresh and salt water.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun zoology Any of the spiral gastropods of the genus Rissoa or family Rissoidae, found both in fresh and salt water.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin Rissoa, the typical genus, + -oid.

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Examples

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