contractile vacuole


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contractile vacuole

[kən′trak·təl ′vak·yə·wōl]
(cell and molecular biology)
A tiny, intracellular, membranous bladder that functions in maintaining intra- and extracellular osmotic pressures in equilibrium, as well as excretion of water, such as occurs in protozoans.
References in periodicals archive ?
A functional aquaporin co-localizes with the vacuolar proton pyrophosphatase to acidocalcisomes and the contractile vacuole complex of Trypanosoma cruzi.
Functional characterization of contractile vacuole isolated from Amoeba proteus.
Presence of aquaporin and V-ATPase on the contractile vacuole of Amoeba proteus.