nematodeadj.n.

Brit.

/ˈnɛmətəʊd/,

/ˈniːmətəʊd/, U.S.

/ˈniməˌtoʊd/,

/ˈnɛməˌtoʊd/

Origin: Formed within English, by compounding; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: nemato- comb. form, -ode comb. form¹.

Etymology: < nemato- comb. form + -ode comb. form¹, after German Nematode, noun (1835) or French nématode, noun (1837). Compare Hellenistic Greek νηματώδης fibrous, in filaments, and scientific Latin Nematoda , order name (1861; earlier Nematodes (1848)). Compare earlier nematoid adj. and n.The introduction of nematode alongside earlier nematoid preceded the alteration of the original taxon name Nematoidea to Nematoda . A similar alteration of cestoid and Cestoidea occurred slightly later. Compare also trematode adj. and n.

Zoology.

A. adj.

1. Of or belonging to the large phylum Nematoda (or Nemata), comprising worms with slender, tapering, unsegmented bodies that are round in cross-section, which may be free-living in water or soil or parasites of animals or plants, and include roundworms, threadworms, eelworms, etc.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [adjective] > relating to class Nematoda

nematoid1837

nematode1853

1853 Monthly Jrnl. Med. Sci. May 473 The animal was evidently a nematode worm, without any very distinct internal organs.

1876 P. J. Van Beneden Animal Parasites & Messmates Introd. 26 The greater part..have not lived long in captivity, before nematode and cestode worms completely disappear.

1925 Vet. Rec. 19 Dec. 1137/1 It [sc. parasitic bronchitis] is a bronchial irritation, arising from the presence in the air passages of nematode parasites.

1967 Jrnl. Pediatrics 70 34/2 The disease is suspected on epidemiologic grounds to be caused by..a nematode parasite of rats.

1993 Guardian 24 July 10/8 The team at the museum is still analysing this year's findings, but last year's survey revealed that there were 150,000 nematode worms to every square metre of the bottom of Loch Ness.

2. Of, relating to, resembling, or characteristic of nematode worms.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [adjective] > relating to class Nematoda > of or relating to members of

nematoidean1834

nematode1866

nemic1925

1866 Standard 19 Feb. We now proceed to look our foe in the face—if, indeed, the nematode nuisance possesses any face.

1889 P. Geddes & J. A. Thomson Evol. Sex 17 They become parasitic, and lose both activity and nematode form.

1897 T. C. Allbutt et al. Syst. Med. II. 1032 An embryo of the usual nematode character.

1984 D. A. Roberts & C. W. Boothroyd Fund. Plant Pathol. (ed. 2) iv. 61 Eradicative measures include..nematode control.

1992 Org. Gardening Sept. 8/1 We had no idea that this beneficial nematode product, which has been around for a number of years, was now distributed by Ortho.

B. n.

A nematode worm.

ΘΚΠ

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

1856 Brit. & Foreign Medic-chirurg. Rev. 18 466 The nematodes are furnished with a general cavity, which is almost entirely filled with a vesicular tissue, in which a chylaqueous fluid is lodged.

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 684 Three stages..have been distinguished in the growth of a Nematode after hatching.

a1933 J. A. Thomson Biol. for Everyman (1934) I. vii. 133 Of similar history is another very common Nematode in man, the whip-worm, like a miniature carriage-whip.

1965 B. E. Freeman tr. A. Vandel Biospeleol. vii. 68 Free-living nematodes have frequently been reported from ground water, caves and also mines.

1984 New Yorker 12 Nov. 71/2 The ravages that all nematodes inflict on all food plants add up to a loss every year of seven per cent of all American crops.

1994 Sun (Baltimore) 20 Mar. b4/2 The barnyard's worst nightmares: nematodes that attack pigs, cows and chickens from the inside out.

Derivatives

ˈnematode-like adj.

ΚΠ

1889 Amer. Naturalist 23 912 Fore-gut muscular, Nematode-like, without jaws, with straight glandless mid-gut and pear-shaped hind-gut, rectum and dorsal anus.

1946 Ecol. Monographs 16 34 The small nematode-like larvae of the ceratopogonid fly, Bezzia varicolor (Coq.).

1995 C. Nielsen Animal Evol. xxxvi. 287 Hair worms are a small phylum of nematode-like parasites which spend the larval stages in the body cavities of arthropods.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online June 2022).

单词	nematode
释义	nematodeadj.n. Brit. /ˈnɛmətəʊd/, /ˈniːmətəʊd/, U.S. /ˈniməˌtoʊd/, /ˈnɛməˌtoʊd/ Origin: Formed within English, by compounding; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: nemato- comb. form, -ode comb. form¹. Etymology: < nemato- comb. form + -ode comb. form¹, after German Nematode, noun (1835) or French nématode, noun (1837). Compare Hellenistic Greek νηματώδης fibrous, in filaments, and scientific Latin Nematoda , order name (1861; earlier Nematodes (1848)). Compare earlier nematoid adj. and n.The introduction of nematode alongside earlier nematoid preceded the alteration of the original taxon name Nematoidea to Nematoda . A similar alteration of cestoid and Cestoidea occurred slightly later. Compare also trematode adj. and n. Zoology. A. adj. 1. Of or belonging to the large phylum Nematoda (or Nemata), comprising worms with slender, tapering, unsegmented bodies that are round in cross-section, which may be free-living in water or soil or parasites of animals or plants, and include roundworms, threadworms, eelworms, etc. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [adjective] > relating to class Nematoda nematoid1837 nematode1853 1853 Monthly Jrnl. Med. Sci. May 473 The animal was evidently a nematode worm, without any very distinct internal organs. 1876 P. J. Van Beneden Animal Parasites & Messmates Introd. 26 The greater part..have not lived long in captivity, before nematode and cestode worms completely disappear. 1925 Vet. Rec. 19 Dec. 1137/1 It [sc. parasitic bronchitis] is a bronchial irritation, arising from the presence in the air passages of nematode parasites. 1967 Jrnl. Pediatrics 70 34/2 The disease is suspected on epidemiologic grounds to be caused by..a nematode parasite of rats. 1993 Guardian 24 July 10/8 The team at the museum is still analysing this year's findings, but last year's survey revealed that there were 150,000 nematode worms to every square metre of the bottom of Loch Ness. 2. Of, relating to, resembling, or characteristic of nematode worms. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [adjective] > relating to class Nematoda > of or relating to members of nematoidean1834 nematode1866 nemic1925 1866 Standard 19 Feb. We now proceed to look our foe in the face—if, indeed, the nematode nuisance possesses any face. 1889 P. Geddes & J. A. Thomson Evol. Sex 17 They become parasitic, and lose both activity and nematode form. 1897 T. C. Allbutt et al. Syst. Med. II. 1032 An embryo of the usual nematode character. 1984 D. A. Roberts & C. W. Boothroyd Fund. Plant Pathol. (ed. 2) iv. 61 Eradicative measures include..nematode control. 1992 Org. Gardening Sept. 8/1 We had no idea that this beneficial nematode product, which has been around for a number of years, was now distributed by Ortho. B. n. A nematode worm. ΘΚΠ 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 1856 Brit. & Foreign Medic-chirurg. Rev. 18 466 The nematodes are furnished with a general cavity, which is almost entirely filled with a vesicular tissue, in which a chylaqueous fluid is lodged. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 684 Three stages..have been distinguished in the growth of a Nematode after hatching. a1933 J. A. Thomson Biol. for Everyman (1934) I. vii. 133 Of similar history is another very common Nematode in man, the whip-worm, like a miniature carriage-whip. 1965 B. E. Freeman tr. A. Vandel Biospeleol. vii. 68 Free-living nematodes have frequently been reported from ground water, caves and also mines. 1984 New Yorker 12 Nov. 71/2 The ravages that all nematodes inflict on all food plants add up to a loss every year of seven per cent of all American crops. 1994 Sun (Baltimore) 20 Mar. b4/2 The barnyard's worst nightmares: nematodes that attack pigs, cows and chickens from the inside out. Derivatives ˈnematode-like adj. ΚΠ 1889 Amer. Naturalist 23 912 Fore-gut muscular, Nematode-like, without jaws, with straight glandless mid-gut and pear-shaped hind-gut, rectum and dorsal anus. 1946 Ecol. Monographs 16 34 The small nematode-like larvae of the ceratopogonid fly, Bezzia varicolor (Coq.). 1995 C. Nielsen Animal Evol. xxxvi. 287 Hair worms are a small phylum of nematode-like parasites which spend the larval stages in the body cavities of arthropods. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online June 2022). < adj.n.1853
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