conchoid in English
- conchoid⇄adj. conchoidal.
- conchoid⇄conchoid, noun, adjective.
- conchoid⇄noun (Geometry.) a plane curve such that if a straight line is drawn from a fixed point (the pole) to the curve, the part of the line intercepted between the curve and a fixed straight line (the asymptote) is always equal to a fixed distance.