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单词 ichthyosaur
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ich•thy•o•saur  (ikthē ə sôr′),USA pronunciation n. 
  1. Paleontologyany fishlike marine reptile of the extinct order Ichthyosauria, ranging from 4 to 40 ft. (1.2 to 12 m) in length and having a round, tapering body, a large head, four paddlelike flippers, and a vertical caudal fin.
  • see ichthyosaurus 1820–30
ich′thy•o•sauri•an, adj., n. 
ich′thy•o•sauroid, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
ichthyosaur /ˈɪkθɪəˌsɔː/, ichthyosaurus /ˌɪkθɪəˈsɔːrəs/ n ( pl -saurs, -sauruses, -sauri / -ˈsɔːraɪ/)
  1. any extinct marine Mesozoic reptile of the order Ichthyosauria, which had a porpoise-like body with dorsal and tail fins and paddle-like limbs
    See also plesiosaur
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