Englisch-Esperanto Übersetzung für conchoid

Any of a family of curves defined as the locus of points ''p'', such that each ''p'is on a line that passes through a given fixed point ''P'and intersects a given curve, ''C'', and the distance from ''p'to the point of intersection with ''C'is a specified constant (note that for nontrivial cases two such points ''p'satisfy the criteria, and the resultant curve has two parts
A conchoidal fracture in rock

The conchoid of a circle with respect to a point on the circle is a cardioid if the fixed distance is equal to the diameter of the circle.
The Conchoid of Nicomedes is the conchoid of a straight line with respect to a point not on the line.

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