noun
superellipse
A geometric shape defined by |x/a|^n + |y/b|^n = 1 with n > 2, intermediate between an ellipse and a rectangle. Technical term used in mathematics and design.
スーパー楕円は、ピート・ハインがデザインに用いたことで知られている。
The superellipse is known for being used in design by Piet Hein.