| 单词 | caudal fin |
| 释义 | caudal fin (once / 121849 pages) n WORD FAMILY caudal fin: caudal fins USAGE EXAMPLESThresher sharks tail-slap sardines into oblivion A thresher shark showing off its impressive tail, or caudal fin. Scientific American(Jul 11, 2013) Head, gills, dorsal and caudal fins with yellow longitudinal lines. Swainson, William, Zoological Illustrations, Volume I...(2012) Scaling effects in caudal fin propulsion and the speed of ichthyosaurs. Scientific American(Jan 03, 2012) n the tail of fishes and some other aquatic vertebrates Syn|Hypo|Hyper tail fin heterocercal fin a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks homocercal finsymmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes fin organ of locomotion and balance in fishes and some other aquatic animals |
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