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Definition of Nitella
1. Noun. Fragile branching stoneworts.
Exact synonyms: Genus Nitella
Generic synonyms: Protoctist Genus
Group relationships: Characeae, Family Characeae
Generic synonyms: Protoctist Genus
Group relationships: Characeae, Family Characeae
Medical Definition of Nitella
1. Characean alga that has giant, multinucleate internodal cells. These show cytoplasmic streaming at rates of up to 100 m/sec and have been used as models for motile phenomena in cells and in studies on ionic movement. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)