follow Dictionary.com

Stories We Like: Novels For Language Lovers

conchoid

[kong-koid] /ˈkɒŋ kɔɪd/
noun, Geometry
1.
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 distance. Equation: r = b ± a sec(θ).
Origin
1790-1800
1790-1800; < Greek konchoeidḗs. See conch, -oid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for conchoid

conchoid

/ˈkɒŋkɔɪd/
noun
1.
(geometry) a plane curve consisting of two branches situated about a line to which they are asymptotic, so that a line from a fixed point (the pole) intersecting both branches is of constant length between asymptote and either branch. Equation: (x – a)²(x² + y²) = b²x² where a is the distance between the pole and a vertical asymptote and b is the length of the constant segment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for conchoid

Few English speakers likely know this word

Word Value for conchoid

16
18
Scrabble Words With Friends

Nearby words for conchoid