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单词 directrix
释义

WordReference Random House Unabridged Dictionary of American English © 2024
di•rec•trix  (di rektriks, dī-),USA pronunciation n., pl. di•rec•trix•es, di•rec•tri•ces 
    (di rektri sēz′, dī-, dī′rek trīsēz).USA pronunciation 
  1. Mathematics[Geom.]a fixed line used in the description of a curve or surface. See diag. under parabola. 
  2. Pronouns[Archaic.]a directress.
  • Neo-Latin; see direct, -trix
  • 1615–25
    See -trix. 

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