# cissoid

cis·soidOrigin of cissoid

Classical Greek*kissoeid?s,*ivylike from

*kissos,*ivy +

*eidos,*-oid

**MLA Style**

"cissoid." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/cissoid>.

**APA Style**

cissoid. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/cissoid

(*plural* cissoids)

- (geometry) Any of a family of curves defined as the locus of a point,
*P*, on a line from a given fixed point and intersecting two given curves,*C*_{1}and*C*_{2}, where the distance along the line from*C*_{1}to*P*remains constant and equal to the distance from*P*to*C*_{2}.*The cissoid of a circle and a line is a conchoid*

Ancient Greek, meaning "ivy-like".

**MLA Style**

"cissoid." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/cissoid>.

**APA Style**

cissoid. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/cissoid