1 astroid | Definition of astroid
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astroid

adjective
as·​troid | \ ˈaËŒstrȯid\

Definition of astroid

 (Entry 1 of 2)

: shaped like a star

astroid

noun
\ "\
plural -s

Definition of astroid (Entry 2 of 2)

: a hypocycloid of four cusps, the radius of the rolling circle being one fourth that of the fixed circle

History and Etymology for astroid

Adjective

Greek astroeidēs starlike, from astr- + -oeidēs -oid

Noun

astr- + -oid

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