Lexic.us

Definition of Rissoid

1. n. Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidæ, found both in fresh and salt water.

Definition of Rissoid

1. Noun. (zoology) Any of the spiral gastropods of the genus ''Rissoa'' or family Rissoidae, found both in fresh and salt water. ¹

¹ Source: wiktionary.com

Medical Definition of Rissoid

1. Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water. Origin: NL. Rissoa, the typical genus (fr. A.Risso, an Italian naturalist). Source: Websters Dictionary (01 Mar 1998)

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