"Directrix" is a word in ENGLISH
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.
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.
A directress.
Life will always be to a large extent what we ourselves make it.
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What salesman has the slickest line?A hair grease salesman.
The pointing of a weapon, as a gun, a dart, or an arrow, in the line of direction with the …
Read the complete definitionThe inclosed space near the point where two lines meet; a corner; a nook.
Read the complete definitionThe difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the …
Read the complete definitionOne of the two points of an orbit, as of a planet or satellite, which are at the greatest and …
Read the complete definitionThe point or line from which a start is made; a starting place or a goal in various games.
Read the complete definitionA line in a survey which, being accurately determined in length and position, serves as the origin from which to …
Read the complete definitionA line that touches a curve in two points.
Read the complete definitionThe cutting tool of an engraver on metal, used in line engraving. It is made of tempered steel, one end …
Read the complete definitionThe curve formed by a rope or chain of uniform density and perfect flexibility, hanging freely between two points of …
Read the complete definitionA point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference …
Read the complete definitionAn instrument for drawing lines through a point, or lines converging to a center.
Read the complete definitionConverging to a center; -- applied to lines drawn so as to meet in a point or center.
Read the complete definitionA plane figure, bounded by a single curve line called its circumference, every part of which is equally distant from …
Read the complete definitionTo draw a line around so as to touch at certain points without cutting. See Inscribe, 5.
Read the complete definitionTo draw or direct to a common center; to bring together at a focus or point, as two or more …
Read the complete definitionA solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to …
Read the complete definitionPresenting themselves simultaneously and having reciprocal properties; -- frequently used in pure and applied mathematics with reference to two quantities, …
Read the complete definitionA point maintained in an argument, or a line of argument taken in its support; the subject matter of discussion …
Read the complete definitionTo tend to one point; to incline and approach nearer together; as, lines converge.
Read the complete definitionTending to one point; approaching each other; convergent; as, converging lines.
Read the complete definition