Valve-shell n. : Any fresh-water gastropod of the genus Valvata.

Example:


Taxonomy
shell, online medical dictionary, valve of Vieussens, study skills, medical dictionary, acronyms, abbreviations, science dictionary, education dictionary, encyclopedia, glossary, drugs, medication, dictionary, Search, word tools, zoology, fresh water.

Defination from the web:
valve-shell from the online medical dictionary hosted by mondofacto. ... online medical dictionary | definition of valve-shell. home. dictionary. word tools. study skills. forum. about us. Search. dictionary help. valve-shell. medical dictionary <zoology> Any fresh ...