directrix - Dictionary definition and pronunciation - Yahoo! Education

Definition of directrix

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directrix
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directrix
The directrix at both ends of this general cylinder prints red. 		di·rec·trix  audio  (d-rktrks, d-) KEY 

NOUN:
pl. di·rec·trix·es or di·rec·tri·ces  (drk-trsz) KEY 
  1. Mathematics A fixed curve traversed by a generatrix in generating a conic section or a cylinder.
  2. The median line in the trajectory of fire of an artillery piece.



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