protist

[ proh-tist ]

/ ˈproʊ tɪst /

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noun Microbiology

any of various one-celled organisms, classified in the kingdom Protista, that are either free-living or aggregated into simple colonies and that have diverse reproductive and nutritional modes, including the protozoans, eukaryotic algae, and slime molds: some classification schemes also include the fungi and the more primitive bacteria or may distribute the organisms between the kingdoms Plantae and Animalia according to dominant characteristics.

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Origin of protist

First recorded in 1870–75; from German Protist (masculine singular), from New Latin Protista (neuter plural) name of the kingdom, from Greek prṓtistos (masculine singular) “the very first,” superlative of prôtos “first”; see proto-

OTHER WORDS FROM protist

pro·tis·tan

[proh-tis-tuhn], /proʊˈtɪs tən/, adjective, nounpro·tis·tic

[proh-tis-tik], /proʊˈtɪs tɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use protist in a sentence

Human psychology is inseparably connected with comparative animal psychology, and this again with that of the plants and protists.
The Wonders of Life|Ernst Haeckel
In the most primitive kinds of the unicellular protists we find the phenomena of death and regeneration in the simplest form.
The Wonders of Life|Ernst Haeckel
A long gradation of cellular organization leads from the simplest primitive cells (monera) to the highest developed protists.
The Wonders of Life|Ernst Haeckel
It is only in the case of the protists that the morphological unity is bound up with the physiological.
The Wonders of Life|Ernst Haeckel

There are still living to-day very simple protists which do not tally with this definition, and which I designated monera in 1866.
The Wonders of Life|Ernst Haeckel

British Dictionary definitions for protist

protist

/ (ˈprəʊtɪst) /

noun

(in some classification systems) any organism belonging to the kingdom Protista, originally including bacteria, protozoans, algae, and fungi, regarded as distinct from plants and animals. It was later restricted to protozoans, unicellular algae, and simple fungiSee also protoctist

Word Origin for protist

C19: from New Latin Protista most primitive organisms, from Greek prōtistos the very first, from prōtos first

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for protist

protist

[ prō′tĭst ]

Any of a large variety of usually one-celled organisms belonging to the kingdom Protista (or Protoctista). Protists are eukaryotes and live in water or in watery tissues of organisms. Some protists resemble plants in that they produce their own food by photosynthesis, while others resemble animals in consuming organic matter for food. Protist cells are often structurally much more elaborate than the cells of multicellular plants and animals. Protists include the protozoans, most algae, diatoms, oomycetes, and the slime molds. Also called protoctist See Table at taxonomy.