hemichordaten.adj.

Brit.

/ˈhɛmɪkɔːdeɪt/, U.S.

/ˈhɛməˌkɔrdeɪt/

Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: hemi- prefix, chordate adj.

Etymology: < hemi- prefix + chordate adj., after scientific Latin Hemichordata Hemichordata n. Compare slightly later Hemichordata n. Compare later chordate n.

Zoology.

A. n.

An animal of the phylum Hemichordata.

ΚΠ

1885 Athenæum 28 Nov. 704/2 A species of Balanoglossus obtained..at Herm, Channel Islands, being the first recorded instance of the occurrence of this hemichordate in any part of the British seas.

1942 Biol. Bull. 82 188 Holothurians (Echinodermata) and hemichordates (Prochordata) are most closely related serologically.

1978 Nature 27 Apr. 812/2 Hemichordates are commonly covered by a slime or mucous secretion which is considered protective.

1995 J. A. Holman Anc. Life Great Lakes Basin viii. 140 The hemichordates were once included with the true chordates because they had a short rodlike structure that was mistaken for a notochord.

B. adj.

Partly chordate; spec. of or relating to the phylum Hemichordata.

ΚΠ

1889 Cent. Dict. Hemichordate a., partly chordate, as the anomalous genus Balanoglossus.

1961 Jrnl. Paleontol. 35 1073/2 The Dipleurula larva is a sort of common denominator of echinoderm and hemichordate larvae.

1997 R. Fortey Life v. 147 The few living hemichordate species are evidently the tail of a much more glorious history, when their graptolitic relatives swarmed in the oceans of the world.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	hemichordate
释义	hemichordaten.adj. Brit. /ˈhɛmɪkɔːdeɪt/, U.S. /ˈhɛməˌkɔrdeɪt/ Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: hemi- prefix, chordate adj. Etymology: < hemi- prefix + chordate adj., after scientific Latin Hemichordata Hemichordata n. Compare slightly later Hemichordata n. Compare later chordate n. Zoology. A. n. An animal of the phylum Hemichordata. ΚΠ 1885 Athenæum 28 Nov. 704/2 A species of Balanoglossus obtained..at Herm, Channel Islands, being the first recorded instance of the occurrence of this hemichordate in any part of the British seas. 1942 Biol. Bull. 82 188 Holothurians (Echinodermata) and hemichordates (Prochordata) are most closely related serologically. 1978 Nature 27 Apr. 812/2 Hemichordates are commonly covered by a slime or mucous secretion which is considered protective. 1995 J. A. Holman Anc. Life Great Lakes Basin viii. 140 The hemichordates were once included with the true chordates because they had a short rodlike structure that was mistaken for a notochord. B. adj. Partly chordate; spec. of or relating to the phylum Hemichordata. ΚΠ 1889 Cent. Dict. Hemichordate a., partly chordate, as the anomalous genus Balanoglossus. 1961 Jrnl. Paleontol. 35 1073/2 The Dipleurula larva is a sort of common denominator of echinoderm and hemichordate larvae. 1997 R. Fortey Life v. 147 The few living hemichordate species are evidently the tail of a much more glorious history, when their graptolitic relatives swarmed in the oceans of the world. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.adj.1885
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