# conchoid

con·choidOrigin of conchoid

from Classical Greek*konchoeid?s*

*(gramm?)*, conchoid (line), literally , mussel-like: see conch and -oid

**MLA Style**

"conchoid." YourDictionary, n.d. Web. 18 May 2018. <http://www.yourdictionary.com/conchoid>.

**APA Style**

conchoid. (n.d.). Retrieved May 18th, 2018, from http://www.yourdictionary.com/conchoid

## conchoid

(*plural* conchoids)

- (mathematics) Any of a family of curves defined as the locus of a point,
*P*, on a line from a given fixed point to a given curve,*C*, where the distance along the line from*C*to*P*remains constant.*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.*

**MLA Style**

"conchoid." YourDictionary, n.d. Web. 18 May 2018. <http://www.yourdictionary.com/conchoid>.

**APA Style**

conchoid. (n.d.). Retrieved May 18th, 2018, from http://www.yourdictionary.com/conchoid