aschelminthadj.n.
/ˈaʃhɛlmɪnθ/, /ˈaskhɛlmɪnθ/, U.S. /ˈæʃɛlˌmɪnθ/, /ˈæskɛlˌmɪnθ/ Zoology.
A. adj.
Of or relating to the former group Aschelminthes.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [adjective] > relating to nemathelminthes
nemathelminthic1890
aschelminth1951
1951 Jrnl. Parasitol. 37 353 Whether one wishes to consider the Nematoda an independent phylum or an aschelminth class is of relatively minor importance.
1970 Science 17 July 272/1 He is referring to the phylum Scolecida, which includes all the flatworms, the Acanthocephala, the aschelminth complex, and the nemerteans.
1995 C. Nielsen Animal Evol. xxviii. 236 Aschelminthes..the morphology of the body cavities does not show any character which can be regarded as an aschelminth apomorphy.
B. n.
An animal of the former group Aschelminthes. Cf. nemathelminth n., pseudocoelomate n.Although the taxon is no longer recognized, the term aschelminth is still in informal use.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Nemathelminthes > [noun] > member of
threadworm1804
roundworm1837
nemathelminth1870
aschelminth1958
1958 Q. Rev. Biol. 33 34/2 Until the development of the pharynx is known, it is impossible to derive the kinorynchs from any of the central groups of aschelminths.
1979 Science 20 July 302/1 The Gastrotricha are a phylum of microscopic animals, traditionally included in the invertebrate assemblage known as ‘aschelminths’.
1994 E. E. Ruppert & R. D. Barnes Invertebr. Zool. (ed. 6) 281/2 The informal name aschelminths..is still a convenient term of reference for the entire assemblage.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).
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adj.n.1951