protozoann.adj.

Brit.

/ˌprəʊtə(ʊ)ˈzəʊən/, U.S.

/ˌproʊdəˈzoʊən/

Origin: Formed within English, by derivation. Etymons: Protozoa n., -an suffix.

Etymology: < Protozoa n. + -an suffix.With use as noun compare earlier protozoon n. With use as adjective compare slightly earlier protozoal adj., protozoic adj.².

Biology and Medicine.

A. n.

An organism of the group Protozoa; a single-celled animal.

ΘΚΠ

the world > animals > invertebrates > protozoa > [noun] > member of

protoplast1851

protozoon1851

malacozooid1863

protozoan1863

protist1873

protozoary1890

1863 J. D. Dana Man. Geol. 749 Malacozöoids; or, Mollusk-like Protozoans, as the Rhizopods.

1875 J. W. Dawson Nature & Bible App. A. 224 The specimens of Eozoön occur..in certain layers of the limestone, in the manner in which the fossil Protozoans known as Stromatoporæ occur in the Silurian limestones.

1901 Westm. Gaz. 30 Mar. 6/2 His contention is that the organism of cancer is undoubtedly a protozoan.

1939 Jrnl. Cellular & Compar. Physiol. 14 410 The tentacles of the suctorian protozoan Ephelota coronata..are very long and thin.

1977 J. Reader & H. Croze Pyramids of Life 124 Under a microscope in a drop of lake water we observe minute protozoans.

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 17/2 Some protozoans may be osmotrophs or phagotrophs at different times.

2005 C. Tudge Secret Life Trees xiii. 333 But in plants and animals (and fungi and protozoans and seaweeds) most of the DNA does not seem to code for protein.

B. adj.

Of, relating to, designating, or characteristic of a protozoan; (of a disease) caused by a parasitic protozoan.

ΘΚΠ

the world > animals > invertebrates > protozoa > [adjective]

protozoic1864

hypozoic1865

protozoal1865

protozoan1869

1869 Q. Jrnl. Microsc. Sci. 9 35 A Protozoan organism of the Monera group.

1874 J. D. Dana Man. Geol. (ed. 2) 210 The animals were mainly Protozoan, Molluscan, and Radiate, because these are the aquatic divisions of the Animal kingdom.

1904 Brit. Med. Jrnl. 17 Sept. 656 As to the nature of this new protozoan disease.

1940 L. H. Hyman Invertebrates I. iii. 115 Trichomonas..is one of the most common protozoan inhabitants of the intestine of all groups of vertebrates.

1991 R. A. Fortey Fossils (ed. 2) (BNC) 55 A few protozoan groups secrete hard tests (shells) which are very common fossils.

2002 R. Porter Blood & Guts v. 103 In 1905 the protozoan parasite causing it [sc. syphilis], a spiralling thread-like single-celled organism, was isolated from sores.

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

单词	protozoan
释义	protozoann.adj. Brit. /ˌprəʊtə(ʊ)ˈzəʊən/, U.S. /ˌproʊdəˈzoʊən/ Origin: Formed within English, by derivation. Etymons: Protozoa n., -an suffix. Etymology: < Protozoa n. + -an suffix.With use as noun compare earlier protozoon n. With use as adjective compare slightly earlier protozoal adj., protozoic adj.². Biology and Medicine. A. n. An organism of the group Protozoa; a single-celled animal. ΘΚΠ the world > animals > invertebrates > protozoa > [noun] > member of protoplast1851 protozoon1851 malacozooid1863 protozoan1863 protist1873 protozoary1890 1863 J. D. Dana Man. Geol. 749 Malacozöoids; or, Mollusk-like Protozoans, as the Rhizopods. 1875 J. W. Dawson Nature & Bible App. A. 224 The specimens of Eozoön occur..in certain layers of the limestone, in the manner in which the fossil Protozoans known as Stromatoporæ occur in the Silurian limestones. 1901 Westm. Gaz. 30 Mar. 6/2 His contention is that the organism of cancer is undoubtedly a protozoan. 1939 Jrnl. Cellular & Compar. Physiol. 14 410 The tentacles of the suctorian protozoan Ephelota coronata..are very long and thin. 1977 J. Reader & H. Croze Pyramids of Life 124 Under a microscope in a drop of lake water we observe minute protozoans. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 17/2 Some protozoans may be osmotrophs or phagotrophs at different times. 2005 C. Tudge Secret Life Trees xiii. 333 But in plants and animals (and fungi and protozoans and seaweeds) most of the DNA does not seem to code for protein. B. adj. Of, relating to, designating, or characteristic of a protozoan; (of a disease) caused by a parasitic protozoan. ΘΚΠ the world > animals > invertebrates > protozoa > [adjective] protozoic1864 hypozoic1865 protozoal1865 protozoan1869 1869 Q. Jrnl. Microsc. Sci. 9 35 A Protozoan organism of the Monera group. 1874 J. D. Dana Man. Geol. (ed. 2) 210 The animals were mainly Protozoan, Molluscan, and Radiate, because these are the aquatic divisions of the Animal kingdom. 1904 Brit. Med. Jrnl. 17 Sept. 656 As to the nature of this new protozoan disease. 1940 L. H. Hyman Invertebrates I. iii. 115 Trichomonas..is one of the most common protozoan inhabitants of the intestine of all groups of vertebrates. 1991 R. A. Fortey Fossils (ed. 2) (BNC) 55 A few protozoan groups secrete hard tests (shells) which are very common fossils. 2002 R. Porter Blood & Guts v. 103 In 1905 the protozoan parasite causing it [sc. syphilis], a spiralling thread-like single-celled organism, was isolated from sores. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.adj.1863
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