astroid

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astroid — star shaped, 1897, from Gk. astroeides, from astron star (see ASTRO (Cf. astro )) + oeides (see OID (Cf. oid)) … Etymology dictionary
Astroid — In mathematics, an astroid is a particular type of curve: a hypocycloid with four cusps.Astroids are also superellipses: all astroids are scaled versions of the curve specified by the equation:x^{2/3} + y^{2/3} = 1 ,.Its modern name comes from… … Wikipedia
astroid — /as troyd/, n. Geom. a hypocycloid with four cusps. [ASTR(O) + OID] * * * … Universalium
astroid — noun A hypocycloid with four cusps. See Also: asteroid, astronomy … Wiktionary
astroid — Star shaped. [G. astroeides, fr. astron, star, + eidos, resemblance] … Medical dictionary
Astroid — Her. Another term for a *mullet … Dictionary of Medieval Terms and Phrases
astroid — n. hypocycloid figure with four cusps (Geometry) … English contemporary dictionary
astroid — [ astrɔɪd] noun Mathematics a hypocycloid with four cusps (like a square with concave sides) … English new terms dictionary
astroid — as·troid … English syllables
astroid — n. star shaped … Dictionary of difficult words
astroid — I. ˈaˌstrȯid adjective Etymology: Greek astroeidēs starlike, from astr + oeidēs oid : shaped like a star II. noun ( s) Etymology: astr + oid : a hypocycloid of four cusps, the radius of the … Useful english dictionary

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