CISSOID
Here are the details, including the meaning, point value, and more about the Scrabble word CISSOID. Below
cissoid is worth 10 points in the game of Scrabble
Definitions for the word, cissoid
(n.) A curve invented by Diocles, for the purpose of solving two celebrated problems of the higher geometry; viz., to trisect a plane angle, and to construct two geometrical means between two given straight lines.