cissoid

== English == === Pronunciation === === Etymology 1 === From Ancient Greek κισσός (kissós, “ivy”) + εἶδος (eîdos, “form, image”). ==== Noun ==== 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, C1 and C2, where the distance along the line from C1 to P remains constant and equal to the distance from P to C2. The cissoid of a circle and a line is a conchoid ===== Related terms ===== cissoidal ===== Translations ===== === Etymology 2 === From cis +‎ -oid. ==== Noun ==== cissoid (plural cissoids) Alternative form of cisoid (“4chan slang, derogatory: cisgender person”). (The addition of quotations indicative of this usage is being sought:) === Anagrams === cisoids