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单词 micropyle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
mi•cro•pyle  (mīkrə pīl′),USA pronunciation n. 
  1. [Zool.]any minute opening in an ovum through which a spermatozoon can enter, as in many insects.
  2. Botanythe minute orifice or opening in the integuments of an ovule. See diag. under orthotropous. 
  • micro- + Greek pýlē gate 1815–25
mi′cro•pylar, adj. 

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