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Directrix
noun
Definitions
Noun
- 1 A female who directs; a directress.
- 2 A line used to define a curve or surface; especially a line, the distance from which a point on a conic has a constant ratio to that from the focus.
Etymology
Learned borrowing from Latin dīrēctrīx. By surface analysis, direct + -trix.
See also for "directrix"
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Unscramble this word: directrix