英语词汇“dorsal fin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	dorsal fin
释义	dorsal fin noun Zoology An unpaired fin on the back of a fish or whale, e.g. the tall triangular fin of a shark or killer whale.It has two dorsal fins and a caudal fin or tail like that of a shark.... They have one caudal fin, one dorsal fin, two pelvic fins, one anal fin, and two pectoral fins. This is the pattern seen in the dorsal fins of fishes, in Dimetrodon and among iguanid lizards.
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