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单词 ephemerid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
e•phem•er•id  (i femər id),USA pronunciation n. 
  1. Insectsan insect of the order Ephemeroptera, comprising the mayflies. Also called ephemeropteran. 
  • Neo-Latin Ephemeridae. See ephemeral, -id2
  • 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
ephemerid /ɪˈfɛmərɪd/ n
  1. any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayflies
    Also called: ephemeropteran
Etymology: 19th Century: from New Latin Ephēmerida, from Greek ephēmeros short-lived + -id²
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