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Monday, November 25th, 2024
the Week of Christ the King / Proper 29 / Ordinary 34
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Bible Dictionaries
Directrix

Webster's Dictionary

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(1):

(n.) A line along which a point in another line moves, or which in any way governs the motion of the point and determines the position of the curve generated by it; the line along which the generatrix moves in generating a surface.

(2):

(n.) A directress.

(3):

(n.) A straight line so situated with respect to a conic section that the distance of any point of the curve from it has a constant ratio to the distance of the same point from the focus.

Bibliography Information
Webster, Noah. Entry for 'Directrix'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​d/directrix.html. 1828.
 
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