# hypocycloid

[hahy-puh-sahy-kloid]

- a curve generated by the motion of a point on the circumference of a circle that rolls internally, without slipping, on a given circle.

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## Origin of hypocycloid^{}

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for hypocycloid

### Historical Examples

#### The curve generated by rolling on the concave side is called a 'hypocycloid'.

The New Gresham EncyclopediaVarious

## hypocycloid

- a curve described by a point on the circumference of a circle as the circle rolls around the inside of a fixed coplanar circleCompare epicycloid, cycloid (def. 4)

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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

## hypocycloid

[hī′pō-sī′kloid′]

- The curve described by a point on the circumference of a circle as the circle rolls on the inside of the circumference of a second, fixed circle.

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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.