roundwormn.

Brit.

/ˈraʊn(d)wəːm/, U.S.

/ˈraʊn(d)ˌwərm/

Forms: see round adj. and worm n.

Origin: Formed within English, by compounding. Etymons: round adj., worm n.

Etymology: < round adj. + worm n. Compare German Rundwurm (late 18th cent. in sense 1, early 19th cent. in sense 2).

1. A large, parasitic nematode worm, Ascaris lumbricoides, which has a rounded cross-section and is found in the intestines of humans (more fully common roundworm, † long round worm). Also: any of various other, generally smaller, nematodes that parasitize humans or other mammals, mostly belonging to one or other of the genera Ascaris, Trichuris (whipworms), and Enterobius (pinworms).

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > class Nematoda > family Ascaridae > genus Ascarides or Ascaris > member of

roundworm1558

ascaris1797

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Oligochaeta > family Lumbricidae > member of genus Lumbricus

worma1100

roundworm1558

meadow worm1653

lumbricus1808

1558 W. Bullein Govt. Healthe f. lxvi^v To eate of it, stoppeth Flixes, and quencheth burning choller, and..will kill rounde wormes in the belly.

1565 T. Cooper Thesaurus Lumbricus, a longe rounde woorme..in mans body.

1611 R. Cotgrave Dict. French & Eng. Tongues Ascaride, a kind of small round worme, which breeds in the bowels.

1658 Moufet's Theat. Insects ii. xxxii Round worms [breed] only in the small guts, Ascarides in the Longanum, the Gourd-worms..in all.

1683 Philos. Trans. (Royal Soc.) 13 154 The Lumbricus teres, that common Round Worm which Children usually are troubled with.

1797 Encycl. Brit. XI. 343/1 The long round worms seem to be the most dangerous which infest the human body, as they often pierce through the stomach and intestines.

1822 J. M. Good Study Med. I. 297 The head of the long round worm is slightly incurved.

1829 S. Cooper Good's Study Med. (ed. 3) 344 It is calculated one-half of the total number of children have either the round, or thread-worm.

1896 J. W. Kirkaldy & E. C. Pollard tr. J. E. V. Boas Text Bk. Zool. 160 The Common Round-worm (Ascaris), often of considerable size.

1929 E. R. Stitt Diagnostics & Treatm. Trop. Dis. (ed. 5) xlii. 517 Of the cosmopolitan round worms Ascaris and Trichuris are the most common.

1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) ix. 128 Related to Filaria are two other roundworms parasitic in man. One of these is the West African eye worm.

2002 R. Porter Blood & Guts i. 5 The parasitic roundworm Ascaris probably evolved in humans from pig ascaris, leading to diarrhoea and malnutrition.

2. Zoology. Any worm of the phylum Nematoda; a nematode.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > member of

threadworm1804

roundworm1837

nemathelminth1870

aschelminth1958

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > class Nematoda > member of

roundworm1837

nematode1856

nematoid1865

bloodworm1872

heartworm1877

rhabdonema1886

palisade worm1888

kidney worm1893

tunnel-worm1895

nema1917

rhabditoid1937

1837 R. Owen in Todd's Cycl. Anat. & Physiol. II. 116/2 Nematoidea,..Round-worms... Body elongated, rounded, elastic.

1864 Chambers's Encycl. VI. 704/1 The N[ematelmia] are sometimes termed Round-worms, just as the Platyelmia..are called Flat-worms.

1896 J. W. Kirkaldy & E. C. Pollard tr. J. E. V. Boas Text Bk. Zool. 158 Nemathelminthes (Round-worms).

1944 R. Matheson Entomol. for Introd. Courses i. 8 The thorny-sealed worms, Acanthocephala, sometimes placed with the round worms (Nemathelminthes) but frequently regarded as a distinct phylum.

1971 R. E. Pfadt Fund. Appl. Entomol. (ed. 2) Gloss. 653 Aschelminthes, a phylum of invertebrate animals that include roundworms, rotifers, and several other classes.

2003 N.Y. Times 21 Jan. (Washington Final ed.) d4/2 It helps control larval development in C[aenorhabditis] elegans, the roundworm often used for genetic studies.

This entry has been updated (OED Third Edition, March 2011; most recently modified version published online June 2022).

单词	roundworm
释义	roundwormn. Brit. /ˈraʊn(d)wəːm/, U.S. /ˈraʊn(d)ˌwərm/ Forms: see round adj. and worm n. Origin: Formed within English, by compounding. Etymons: round adj., worm n. Etymology: < round adj. + worm n. Compare German Rundwurm (late 18th cent. in sense 1, early 19th cent. in sense 2). 1. A large, parasitic nematode worm, Ascaris lumbricoides, which has a rounded cross-section and is found in the intestines of humans (more fully common roundworm, † long round worm). Also: any of various other, generally smaller, nematodes that parasitize humans or other mammals, mostly belonging to one or other of the genera Ascaris, Trichuris (whipworms), and Enterobius (pinworms). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > class Nematoda > family Ascaridae > genus Ascarides or Ascaris > member of roundworm1558 ascaris1797 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Oligochaeta > family Lumbricidae > member of genus Lumbricus worma1100 roundworm1558 meadow worm1653 lumbricus1808 1558 W. Bullein Govt. Healthe f. lxvi^v To eate of it, stoppeth Flixes, and quencheth burning choller, and..will kill rounde wormes in the belly. 1565 T. Cooper Thesaurus Lumbricus, a longe rounde woorme..in mans body. 1611 R. Cotgrave Dict. French & Eng. Tongues Ascaride, a kind of small round worme, which breeds in the bowels. 1658 Moufet's Theat. Insects ii. xxxii Round worms [breed] only in the small guts, Ascarides in the Longanum, the Gourd-worms..in all. 1683 Philos. Trans. (Royal Soc.) 13 154 The Lumbricus teres, that common Round Worm which Children usually are troubled with. 1797 Encycl. Brit. XI. 343/1 The long round worms seem to be the most dangerous which infest the human body, as they often pierce through the stomach and intestines. 1822 J. M. Good Study Med. I. 297 The head of the long round worm is slightly incurved. 1829 S. Cooper Good's Study Med. (ed. 3) 344 It is calculated one-half of the total number of children have either the round, or thread-worm. 1896 J. W. Kirkaldy & E. C. Pollard tr. J. E. V. Boas Text Bk. Zool. 160 The Common Round-worm (Ascaris), often of considerable size. 1929 E. R. Stitt Diagnostics & Treatm. Trop. Dis. (ed. 5) xlii. 517 Of the cosmopolitan round worms Ascaris and Trichuris are the most common. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) ix. 128 Related to Filaria are two other roundworms parasitic in man. One of these is the West African eye worm. 2002 R. Porter Blood & Guts i. 5 The parasitic roundworm Ascaris probably evolved in humans from pig ascaris, leading to diarrhoea and malnutrition. 2. Zoology. Any worm of the phylum Nematoda; a nematode. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > member of threadworm1804 roundworm1837 nemathelminth1870 aschelminth1958 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > class Nematoda > member of roundworm1837 nematode1856 nematoid1865 bloodworm1872 heartworm1877 rhabdonema1886 palisade worm1888 kidney worm1893 tunnel-worm1895 nema1917 rhabditoid1937 1837 R. Owen in Todd's Cycl. Anat. & Physiol. II. 116/2 Nematoidea,..Round-worms... Body elongated, rounded, elastic. 1864 Chambers's Encycl. VI. 704/1 The N[ematelmia] are sometimes termed Round-worms, just as the Platyelmia..are called Flat-worms. 1896 J. W. Kirkaldy & E. C. Pollard tr. J. E. V. Boas Text Bk. Zool. 158 Nemathelminthes (Round-worms). 1944 R. Matheson Entomol. for Introd. Courses i. 8 The thorny-sealed worms, Acanthocephala, sometimes placed with the round worms (Nemathelminthes) but frequently regarded as a distinct phylum. 1971 R. E. Pfadt Fund. Appl. Entomol. (ed. 2) Gloss. 653 Aschelminthes, a phylum of invertebrate animals that include roundworms, rotifers, and several other classes. 2003 N.Y. Times 21 Jan. (Washington Final ed.) d4/2 It helps control larval development in C[aenorhabditis] elegans, the roundworm often used for genetic studies. This entry has been updated (OED Third Edition, March 2011; most recently modified version published online June 2022). < n.1558
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