directrices

Variant of directrix

directrix definition

di·rec·trix (də rek′triks; also dī-)

noun pl. directrixes -·trix′es or directrices -·tri′·ces (dī′rek trī′sēz)

  1. Rare a woman director
  2. Geom.
    1. a fixed line associated with a conic section and its focus and eccentricity
    2. the curve that bounds the base of a cone or cylinder

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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