preoperclen.

Brit.

/ˌpriːə(ʊ)ˈpəːkl/,

/ˌpriːˈəʊpəkl/, U.S.

/ˌprioʊˈpərk(ə)l/,

/ˌpriˈoʊpərk(ə)l/

Origin: Formed within English, by derivation. Etymons: pre- prefix, opercle n.

Etymology: < pre- prefix + opercle n. Compare earlier preoperculum n., preopercule n.

Ichthyology.

= preoperculum n. 1.

ΘΚΠ

the world > animals > fish > parts of fish > [noun] > gill(s) or parts of

ginnle?c1475

gill vein1683

arista1691

radius1691

fish-ear1748

operculum1752

flap1803

opercle1808

subopercle1822

preoperculum1828

preopercule1842

preopercular1851

interoperculum1855

preoperclec1857

raker1903

c1857 C. Girard in Zool. Rep. (U.S. War Dept.) iv. 10 Origin of anterior dorsal fin situated in advance of the convexity of the preopercle.

1909 Science Oct. 573/2 Scales small and cycloid; preopercle entire in the adult.

1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xvii. 238 The operculum or gill-cover..is supported by four thin bones that are easily identified. They are the preopercle, whose posterior and ventral borders are serrated, the opercle, the subopercle, and the interopercle.

1987 Outdoor Canada June–July 34/1 (advt.) The cheek, or preopercle is the front part of the gill cover.

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

单词	preopercle
释义	preoperclen. Brit. /ˌpriːə(ʊ)ˈpəːkl/, /ˌpriːˈəʊpəkl/, U.S. /ˌprioʊˈpərk(ə)l/, /ˌpriˈoʊpərk(ə)l/ Origin: Formed within English, by derivation. Etymons: pre- prefix, opercle n. Etymology: < pre- prefix + opercle n. Compare earlier preoperculum n., preopercule n. Ichthyology. = preoperculum n. 1. ΘΚΠ the world > animals > fish > parts of fish > [noun] > gill(s) or parts of ginnle?c1475 gill vein1683 arista1691 radius1691 fish-ear1748 operculum1752 flap1803 opercle1808 subopercle1822 preoperculum1828 preopercule1842 preopercular1851 interoperculum1855 preoperclec1857 raker1903 c1857 C. Girard in Zool. Rep. (U.S. War Dept.) iv. 10 Origin of anterior dorsal fin situated in advance of the convexity of the preopercle. 1909 Science Oct. 573/2 Scales small and cycloid; preopercle entire in the adult. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xvii. 238 The operculum or gill-cover..is supported by four thin bones that are easily identified. They are the preopercle, whose posterior and ventral borders are serrated, the opercle, the subopercle, and the interopercle. 1987 Outdoor Canada June–July 34/1 (advt.) The cheek, or preopercle is the front part of the gill cover. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < n.c1857
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