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单词 pygidium
释义

WordReference Random House Unabridged Dictionary of American English © 2024
py•gid•i•um  (pī jidē əm),USA pronunciation n., pl. -gid•i•a (-jidē ə).USA pronunciation [Zool.]
  1. Zoologyany of various structures or regions at the caudal end of the body in certain invertebrates.
  • Greek pȳg(é̄) rump + -idion diminutive suffix
  • Neo-Latin
  • 1840–50
py•gidi•al, adj. 

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