• (n.) Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water.
Found on
http://thinkexist.com/dictionary/meaning/rissoid/
Ris'soid noun [ New Latin
Rissoa , the typical genus ( from A.
Risso , an Italian naturalist) +
- oid .]
(Zoology) Any one of very numerous species of small spiral gastropods of the genus
Rissoa , or family
Rissoidæ , found both in fresh and salt water.
Found on
http://www.encyclo.co.uk/webster/R/85
No exact match found.
