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单词 dimetrodon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
di•met•ro•don  (dī metrə don′),USA pronunciation n. 
  1. Paleontologyan extinct carnivorous mammallike reptile, of the genus Dimetrodon, dominant in North America during the Permian Period, up to 10 ft. (3.1 m) long and usually bearing spinal sails.
  • Neo-Latin (1878), equivalent. to Greek dímetr(os) having two measures (see dimeter) + odó̄n tooth; apparently so named in reference to the large size of the anterior incisors relative to the other teeth

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