preoperculumn.

Brit.

/ˌpriːə(ʊ)ˈpəːkjᵿləm/,

/ˌpriːɒˈpəːkjᵿləm/, U.S.

/ˌprioʊˈpərkjəl(ə)m/

Inflections: Plural preopercula.

Forms: 1800s– praeoperculum, 1800s– preoperculum.

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

Etymology: < pre- prefix + operculum n.

1. Ichthyology. The anterior of four bones forming the operculum in fishes.

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

1828 J. Stark Elements Nat. Hist. I. 454 Head scaly; operculum with spines, and the preoperculum with dentations.

1871 Proc. Amer. Philos. Soc. 1869–70 11 568 Width of head at preopercula 5.66 times in length, exclusive of caudal fin.

1880 A. Günther Introd. Study of Fishes 80 The side of the skull, in front of the operculum, is covered by a large irregularly-shaped bone, held by some to be the præoperculum.

1935 Copeia ii. 61 Praeperculum with a double edge, the outer serrated.

1995 J. S. Ryland in P. J. Hayward & J. S. Ryland Handbk. Marine fauna N.W. Europe xiv. 713 Notice the jaws and the flat bones constituting the gill cover, especially the preoperculum..and the operculum.

†2. Botany. The lid of the capsule of a moss. Cf. operculum n. 2(a). Obsolete. rare.Apparently only attested in dictionaries or glossaries.

ΚΠ

1864 Webster's Amer. Dict. Eng. Lang. Preoperculum, the fore-lid or operculum in mosses.

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

单词	preoperculum
释义	preoperculumn. Brit. /ˌpriːə(ʊ)ˈpəːkjᵿləm/, /ˌpriːɒˈpəːkjᵿləm/, U.S. /ˌprioʊˈpərkjəl(ə)m/ Inflections: Plural preopercula. Forms: 1800s– praeoperculum, 1800s– preoperculum. Origin: Formed within English, by derivation. Etymons: pre- prefix, operculum n. Etymology: < pre- prefix + operculum n. 1. Ichthyology. The anterior of four bones forming the operculum in fishes. 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 1828 J. Stark Elements Nat. Hist. I. 454 Head scaly; operculum with spines, and the preoperculum with dentations. 1871 Proc. Amer. Philos. Soc. 1869–70 11 568 Width of head at preopercula 5.66 times in length, exclusive of caudal fin. 1880 A. Günther Introd. Study of Fishes 80 The side of the skull, in front of the operculum, is covered by a large irregularly-shaped bone, held by some to be the præoperculum. 1935 Copeia ii. 61 Praeperculum with a double edge, the outer serrated. 1995 J. S. Ryland in P. J. Hayward & J. S. Ryland Handbk. Marine fauna N.W. Europe xiv. 713 Notice the jaws and the flat bones constituting the gill cover, especially the preoperculum..and the operculum. †2. Botany. The lid of the capsule of a moss. Cf. operculum n. 2(a). Obsolete. rare.Apparently only attested in dictionaries or glossaries. ΚΠ 1864 Webster's Amer. Dict. Eng. Lang. Preoperculum, the fore-lid or operculum in mosses. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < n.1828
随便看	winterquarter winterrest winterrig winters winters bark winters cinnamon winters ne summers winters tale winterscape winterseeming wintershaken wintersome wintersow wintersown wintersport winterspring winterstanding winterstarved wintersweet winterswollen winterthin wintertide wintertides wintertime wintertimes