noun phy·sa \ˈfīsə\

Definition of physa

  1. 1a capitalized :  a widely distributed genus (the type of the family Physidae) of freshwater air-breathing snails, having a sinistral, ovate, usually rather short-spired shell and slender nonretractile tentacles with the eyes at their bases b plural -s :  any snail of the genus Physa

  2. 2 plural physae \-ˌsē, -ˌsī\ also physas :  the lower often retractile part of the body of some anthozoans

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Origin and Etymology of physa

New Latin, from Greek physa bellows — more at pustule

Seen and Heard

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to cast off or become cast off

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