单词 | gill flap |
释义 | > as lemmasgill flap gill flap n. (a) (in bony fishes) the branchiostegal membrane, which encloses the underside of the gill chamber (cf. gill membrane n.); (occasionally also) the gill cover or operculum; (b) a flap of tissue bearing a gill, as in the gill book of a horseshoe crab. ΚΠ 1785 A. Monro Struct. & Physiol. Fishes 104 (key to figure) B, The gill flap. 1854 C. D. Badham Prose Halieutics 241 A palm-tree, which it climbed by hooking its spinous gill-flaps into the inequalities of the bark. 1901 Proc. Acad. Nat. Sci. Philadelphia 1900 353 The posterior and lower margins of the operculum form a small fleshy gill-flap. 1913 Jrnl. Biol. Chem. 14 p. xl Attached to the gill flaps of limulus are rods of cartilage-like tissue. 1977 Jrnl. Paleontol. 51 Suppl. 5 Limbs on the posterior thorax bear gills in which the filaments are attached to a gill flap and represent a type from which a Limulus-gill could have derived. 2016 A. Schloss & D. Joachim Williams-Sonoma Grill School 122/1 Looking more closely at the head of the fish, lift the gill flaps at the back of the head and inspect the spongy gills inside. < as lemmas |
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