prothoracicadj.

Brit.

/ˌprəʊθɔːˈrasɪk/,

/ˌprəʊθəˈrasɪk/, U.S.

/ˌproʊθəˈræsɪk/,

/ˌproʊθɔˈræsɪk/

Origin: Formed within English, by derivation. Etymons: pro- prefix², thoracic adj.

Etymology: < pro- prefix² + thoracic adj., after prothorax n.

Entomology.

Of, relating to, or situated on the prothorax of an insect.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of thorax > of or relating to prothorax

prothoracic1826

1826 W. Kirby & W. Spence Introd. Entomol. III. xxxiv. 412 The lower margin of the prothoracic cavity has a notch.

1836–9 Todd's Cycl. Anat. & Physiol. II. 883 In the Coleoptera..the pro-thoracic..segments are largely developed.

1887 Athenæum 16 Apr. 518/1 The existence of prothoracic glands in certain species.

1912 E. D. Sanderson Insect Pests Farm, Garden & Orchard xix. 398 The full-grown larva is about three-quarters inch long, green or yellowish-green, with head and prothoracic shield brown.

1959 T. T. Macan Guide Freshwater Invertebr. Animals 89 Forcipomyia, which has prothoracic legs, is stated..to have no aquatic species, but Vaillant records three in water-films.

1995 C. Nielsen Animal Evol. xx. 165 In crustaceans, the ecdysteroids are secreted by the Y-organs located at the base of the eyestalks, while they come from the prothoracic glands in insects.

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

单词	prothoracic
释义	prothoracicadj. Brit. /ˌprəʊθɔːˈrasɪk/, /ˌprəʊθəˈrasɪk/, U.S. /ˌproʊθəˈræsɪk/, /ˌproʊθɔˈræsɪk/ Origin: Formed within English, by derivation. Etymons: pro- prefix², thoracic adj. Etymology: < pro- prefix² + thoracic adj., after prothorax n. Entomology. Of, relating to, or situated on the prothorax of an insect. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of thorax > of or relating to prothorax prothoracic1826 1826 W. Kirby & W. Spence Introd. Entomol. III. xxxiv. 412 The lower margin of the prothoracic cavity has a notch. 1836–9 Todd's Cycl. Anat. & Physiol. II. 883 In the Coleoptera..the pro-thoracic..segments are largely developed. 1887 Athenæum 16 Apr. 518/1 The existence of prothoracic glands in certain species. 1912 E. D. Sanderson Insect Pests Farm, Garden & Orchard xix. 398 The full-grown larva is about three-quarters inch long, green or yellowish-green, with head and prothoracic shield brown. 1959 T. T. Macan Guide Freshwater Invertebr. Animals 89 Forcipomyia, which has prothoracic legs, is stated..to have no aquatic species, but Vaillant records three in water-films. 1995 C. Nielsen Animal Evol. xx. 165 In crustaceans, the ecdysteroids are secreted by the Y-organs located at the base of the eyestalks, while they come from the prothoracic glands in insects. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022). < adj.1826
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