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astroid

[ as-troid ]

noun

, Geometry.
  1. a hypocycloid with four cusps.

astroid

/ ˈæstrɔɪd /

noun

  1. 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
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Word History and Origins

Origin of astroid1

Discover More

Word History and Origins

Origin of astroid1

C19: from astro- + -oid

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