Skip to Content


Pronunciation: fi'sa

Definition: Type genus of the freshwater pulmonate snails (family Physidae), which includes several common American species such as Physa parkeri, Physa gyrina, and Physa integra; they are intermediate hosts of a number of bird and animal trematodes, including several that cause schistosome dermatitis in humans.

[G. a pair of bellows; an air bubble; bladder]

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.