Medical Term:

Physa

Pronunciation: fī′să

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]

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