astroid

American

[as-troid] / ˈæs trɔɪd /

noun

Geometry.

a hypocycloid with four cusps.

astroid British

/ ˈæstrɔɪd /

noun

maths a hypocycloid having four cusps

"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

Etymology

Origin of astroid

astr(o)- + -oid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

astroid

That makes the discovery of an astroid belt orbiting the star Fomelhaut all the more exciting.

From Salon ● May 10, 2023

Armageddon – in which an astroid the size of Texas is blown to bits to save our planet – was the most surprising inclusion on the damned list, as Nasa originally supported the film.

From The Guardian ● Jan. 5, 2011

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023