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Medical Definition of Contractile vacuole
1. A specialised vacuole of eukaryote cells, especially Protozoa, that fills with water from the cytoplasm and then discharges this externally by the opening of a permanent narrow neck. Function is probably osmoregulatory. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)
Lexicographical Neighbors of Contractile Vacuole
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