**Conchoid** — can refer to: Conchoid curve, an equation discovered by the mathematician Nicomedes Conchoidal fracture, a breakage pattern characteristic to certain glasses and crystals This disambiguation page lists articles associated with the same title. If… … Wikipedia

**conchoid** — [käŋ′koid΄] n. [< Gr konchoeidēs(grammē), conchoid (line), lit., mussel like: see CONCH & OID] a curve traced by an end point of a segment of constant length located on a straight line that rotates about a fixed point, while the other end… … English World dictionary

**conchoid** — /kong koyd/, n. Geom. a plane curve such that if a straight line is drawn from a certain fixed point, called the pole of the curve, to the curve, the part of the line intersected between the curve and its asymptote is always equal to a fixed… … Universalium

**conchoid** — noun Any of a family of curves defined as a locus of a point having a specific relationship with another point, a curve and a line … Wiktionary

**conchoid** — n. curve of the fourth degree invented for the purpose of trisecting an angle and duplicating the cube (Mathematics) … English contemporary dictionary

**conchoid** — con·choid … English syllables

**conchoid** — /ˈkɒŋkɔɪd/ (say kongkoyd), /ˈkɒn / (say kon ) noun a plane curve such that if a straight line be drawn from a certain fixed point, called the pole of the curve, to the curve, the part of the line intersected between the curve and its asymptote is … Australian English dictionary

**conchoid** — ˈkäŋˌkȯid, ˈkänˌ also ˈkȯŋˌ noun ( s) Etymology: Greek konchoeidēs, literally, conchlike, from konch conch + oeidēs oid 1. : a plane curve determined as the collection of pairs of points located on converging rays crossing a fixed line or curve … Useful english dictionary

**Conchoid of Dürer** — Conchoid of Dürer, constructed by him The conchoid of Dürer, also called Dürer s shell curve, is a variant of a conchoid or plane algebraic curve. It is not a true conchoid. Contents 1 … Wikipedia

**Conchoid (mathematics)** — Conchoids of line with common center. The fixed point O is the red dot, the black line is the given curve, and each pair of coloured curves is length d from the intersection with the line that a ray through O makes. In the blue case d is greater… … Wikipedia