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Pronunciation: pro-tis'ta

Definition: A kingdom of both plantlike and animallike eucaryotic unicellular organisms, either in the form of solitary organisms, protozoa, or colonies of cells lacking true tissues.

[G. ntr. pl. of protistos, the first of all]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.