1. Astroid definition, a hypocycloid with four cusps

2. Astroid definition: a hypocycloid having four cusps Meaning, pronunciation, translations and examples

3. Astroid: [noun] a hypocycloid of four cusps, the radius of the rolling circle being one fourth that of the fixed circle.

4. ‘The cycloidal curves, including the Astroid, were discovered by Roemer (1674) in his search for the best form for gear teeth.’ ‘An Astroid is a specialized case of the general hypocycloid family of curves.’ ‘The Astroid is a famous curve that arises in an interesting way.’

5. ‘The cycloidal curves, including the Astroid, were discovered by Roemer (1674) in his search for the best form for gear teeth.’ ‘An Astroid is a specialized case of the general hypocycloid family of curves.’ ‘The Astroid is a famous curve that arises in an interesting way.’