Protistan.

Brit.

/prəʊˈtɪstə/, U.S.

/proʊˈtɪstə/

Origin: A borrowing from Latin. Etymon: Latin Protista.

Etymology: < scientific Latin Protista ( Haeckel Generelle Morphologie (1866) II. (Table at end)) < ancient Greek πρώτιστα , neuter plural of πρώτιστος the very first, superlative of πρῶτος first (see proto- comb. form). Compare German Protistenreich the kingdom Protista, Protisten (plural) organisms in this kingdom (both 1866 in the same source). Compare protistic adj.

Biology.

With singular agreement: a kingdom comprising organisms with a relatively simple organization that are regarded as intermediate between or distinct from animals and plants, especially unicellular eukaryotes. With plural agreement: organisms of this kingdom collectively.Haeckel's group originally included bacteria and sponges as well as protozoans, but not algae or fungi; in his later revisions the fungi were included, and the sponges were removed to the animal kingdom. In modern classifications, bacteria and fungi are removed to separate kingdoms, and the Protista comprise eukaryotic organisms, mainly unicellular, and sometimes including myxomycetes. The group is now sometimes treated as representing a grade of eukaryotic organization rather than a formal taxon. Cf. Monera n., Protoctista n.

ΘΚΠ

the world > life > biology > organism > proto-organism > [noun]

monad1826

proto-organism1860

cytode1869

Protista1869

protist1873

ephemeromorph1874

protistan1890

1869 Philos. Trans. (Royal Soc.) 159 716 The Protozoa, the Protista of Haeckel.

1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 75 The plan of uniting all the lower organisms which cannot be regarded as Animals or Plants into the Kingdom of the Protista.

1899 W. James Talks to Teachers xiv. 163 We used to have interminable discussion as to whether certain single-celled organisms were animals or vegetables, until Haeckel introduced the new apperceptive name of Protista, which ended the disputes.

1925 E. B. Wilson Cell in Devel. & Heredity (ed. 3) vii. 581 In most Protista union of the gametes is complete and permanent, nuclear fusion or karyogamy being accompanied by complete protoplasmic fusion or plastogamy.

1977 T. I. Storer et al. Elements Zool. (ed. 4) i. 6/2 Scientists now classify organisms into either 4 or 5 kingdoms: Animalia (animals), Plantae (plants), Fungi (fungi and slime moulds), Protista, and Monera.

1994 New Scientist 1 Oct. 11/1 Myxozoans..have usually been lumped with protozoans into the Protista kingdom because of their small size and lack of well-developed tissues or embryonic development.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	protista
释义	Protistan. Brit. /prəʊˈtɪstə/, U.S. /proʊˈtɪstə/ Origin: A borrowing from Latin. Etymon: Latin Protista. Etymology: < scientific Latin Protista ( Haeckel Generelle Morphologie (1866) II. (Table at end)) < ancient Greek πρώτιστα , neuter plural of πρώτιστος the very first, superlative of πρῶτος first (see proto- comb. form). Compare German Protistenreich the kingdom Protista, Protisten (plural) organisms in this kingdom (both 1866 in the same source). Compare protistic adj. Biology. With singular agreement: a kingdom comprising organisms with a relatively simple organization that are regarded as intermediate between or distinct from animals and plants, especially unicellular eukaryotes. With plural agreement: organisms of this kingdom collectively.Haeckel's group originally included bacteria and sponges as well as protozoans, but not algae or fungi; in his later revisions the fungi were included, and the sponges were removed to the animal kingdom. In modern classifications, bacteria and fungi are removed to separate kingdoms, and the Protista comprise eukaryotic organisms, mainly unicellular, and sometimes including myxomycetes. The group is now sometimes treated as representing a grade of eukaryotic organization rather than a formal taxon. Cf. Monera n., Protoctista n. ΘΚΠ the world > life > biology > organism > proto-organism > [noun] monad1826 proto-organism1860 cytode1869 Protista1869 protist1873 ephemeromorph1874 protistan1890 1869 Philos. Trans. (Royal Soc.) 159 716 The Protozoa, the Protista of Haeckel. 1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 75 The plan of uniting all the lower organisms which cannot be regarded as Animals or Plants into the Kingdom of the Protista. 1899 W. James Talks to Teachers xiv. 163 We used to have interminable discussion as to whether certain single-celled organisms were animals or vegetables, until Haeckel introduced the new apperceptive name of Protista, which ended the disputes. 1925 E. B. Wilson Cell in Devel. & Heredity (ed. 3) vii. 581 In most Protista union of the gametes is complete and permanent, nuclear fusion or karyogamy being accompanied by complete protoplasmic fusion or plastogamy. 1977 T. I. Storer et al. Elements Zool. (ed. 4) i. 6/2 Scientists now classify organisms into either 4 or 5 kingdoms: Animalia (animals), Plantae (plants), Fungi (fungi and slime moulds), Protista, and Monera. 1994 New Scientist 1 Oct. 11/1 Myxozoans..have usually been lumped with protozoans into the Protista kingdom because of their small size and lack of well-developed tissues or embryonic development. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1869
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