interoperculumn.

/ˌɪntərəʊˈpəːkjʊləm/

Etymology: inter- prefix 1b(c).

Ichthyology.

One of the four bones normally forming the gill-cover, esp. in teleostean and ganoid fishes; usually situated below the præoperculum, and partly between this on one side and the operculum and suboperculum on the other.

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

1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860)

1871 C. Darwin Descent of Man II. xii. 10 The male has its mouth and interoperculum fringed with a beard of stiff hairs.

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 93 A series of membrane bones well developed in Teleostei and Ganoidei are attached to the posterior edge of the hyomandibular and quadrate bones. These are the prae-operculum, the operculum, the sub-operculum, and the inter-operculum. They close in laterally the branchial cavity.

This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018).

单词	interoperculum
释义	interoperculumn. /ˌɪntərəʊˈpəːkjʊləm/ Etymology: inter- prefix 1b(c). Ichthyology. One of the four bones normally forming the gill-cover, esp. in teleostean and ganoid fishes; usually situated below the præoperculum, and partly between this on one side and the operculum and suboperculum on the other. 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 1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) 1871 C. Darwin Descent of Man II. xii. 10 The male has its mouth and interoperculum fringed with a beard of stiff hairs. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 93 A series of membrane bones well developed in Teleostei and Ganoidei are attached to the posterior edge of the hyomandibular and quadrate bones. These are the prae-operculum, the operculum, the sub-operculum, and the inter-operculum. They close in laterally the branchial cavity. This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018). < n.1855
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