mesopelagicadj.

Brit.

/ˌmɛsə(ʊ)pᵻˈladʒɪk/, U.S.

/ˈˌmɛzoʊpəˈlædʒɪk/; see also meso- comb. form.

Origin: Formed within English, by compounding. Etymons: meso- comb. form, pelagic adj.

Etymology: < meso- comb. form + pelagic adj. Compare French mésopélagique (1966 or earlier).

Biology.

Designating, relating to, or inhabiting the intermediate depths of the sea, spec. the depths between about 200 and 1000 metres (approx. 670 and 3300 feet).

ΘΚΠ

the world > the earth > water > sea or ocean > region of sea or ocean > [adjective] > intermediate depths

bathypelagic1909

mesopelagic1951

1951 W. C. Allee & K. P. Schmidt Hesse's Ecol. Animal Geogr. (ed. 2) xiv. 312 The eyes of many mesopelagic animals are especially large.

1957 Mem. Geol. Soc. Amer. 67 i. 643 Among the typical animals of the mesopelagic zone..are such well-known fishes as Idiacanthus, Chauliodus, Stomias, and the lantern fishes.

1975 Nature 5 June 452/2 The mesopelagic migrants, spending the daytime at depths down to perhaps 1,000 m and rising to within 200 m or so of the surface at night, show an increased respiratory rate not only with increased temperature but also with increased pressure.

1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) iv. 79/1 Many mesopelagic fish species have swim bladders, which are used to maintain buoyancy.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesopelagic
释义	mesopelagicadj. Brit. /ˌmɛsə(ʊ)pᵻˈladʒɪk/, U.S. /ˈˌmɛzoʊpəˈlædʒɪk/; see also meso- comb. form. Origin: Formed within English, by compounding. Etymons: meso- comb. form, pelagic adj. Etymology: < meso- comb. form + pelagic adj. Compare French mésopélagique (1966 or earlier). Biology. Designating, relating to, or inhabiting the intermediate depths of the sea, spec. the depths between about 200 and 1000 metres (approx. 670 and 3300 feet). ΘΚΠ the world > the earth > water > sea or ocean > region of sea or ocean > [adjective] > intermediate depths bathypelagic1909 mesopelagic1951 1951 W. C. Allee & K. P. Schmidt Hesse's Ecol. Animal Geogr. (ed. 2) xiv. 312 The eyes of many mesopelagic animals are especially large. 1957 Mem. Geol. Soc. Amer. 67 i. 643 Among the typical animals of the mesopelagic zone..are such well-known fishes as Idiacanthus, Chauliodus, Stomias, and the lantern fishes. 1975 Nature 5 June 452/2 The mesopelagic migrants, spending the daytime at depths down to perhaps 1,000 m and rising to within 200 m or so of the surface at night, show an increased respiratory rate not only with increased temperature but also with increased pressure. 1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) iv. 79/1 Many mesopelagic fish species have swim bladders, which are used to maintain buoyancy. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < adj.1951
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