| 单词 | pectoral fin |
| 释义 | > as lemmaspectoral fin pectoral fin n. either of the paired lateral fins attached to the pectoral girdle in fishes, corresponding to the forelimbs of other vertebrates; (also) the reduced forelimb or flipper of a whale, manatee, or similar marine mammal. ΘΚΠ the world > animals > fish > parts of fish > [noun] > fin or parts of fin > pectoral pectoral fin1751 pectoral?a1808 the world > animals > animal body > general parts > body and limbs > [noun] > limb > fin or flipper pinna1688 pinnule1688 pinnula1734 pectoral fin1751 flipper1822 flapper1836 1751 Adventures G. Edwards iv. ii. 184 There is a black Spot near the Root of each of the pectoral Fins. 1806 Philos. Trans. (Royal Soc.) 96 8 This series arises from a bone which borders the opening for the gills, and the pectoral fin, with its scapula and muscles, is situated between its foremost flakes. 1845 P. H. Gosse Ocean (1849) vii. 342 The Toad-fishes, or Anglers (Antennarius), whose pectoral and ventral fins have much of the form and also the functions of the feet of a quadruped. 1926 Z. Grey Angler's Eldorado 178 His whole underside, white as snow, with the immense pectoral fins black against the horizon, shone clearly to my distended eyes. 1990 M. J. Benton Vertebr. Palaeontol. vi. 124 Denaea..has a whip-like extension to the pectoral fin called a metapterygial axis. < as lemmas |
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