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Answer for the clue "Geometric curve ", 7 letters:
cissoid

Word definitions for cissoid in dictionaries

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Cissoid \Cis"soid\, n. [Gr. ? like ivy; ? ivy + e'i^dos form.] (Geom.) 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 ...

Wikipedia Word definitions in Wikipedia
In geometry , a cissoid is a curve generated from two given curves C , C and a point O (the pole ). Let L be a variable line passing through O and intersecting C at P and C at P . Let P be the point on L so that OP = P P . (There are actually two such points ...

Wiktionary Word definitions in Wiktionary
n. (context geometry English) 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 ...

Usage examples of cissoid.

He hurried after her, down the scree to where You Bastard was lying with his head and neck flat on the ground, flicking his ears in the heat and idly applying You Vicious Brute's Theory of Transient Integrals to a succession of promising cissoid numbers.