squircle

Noun

1. A closed quartic curve having properties intermediate between those of a square and a circle.
   • At the NCI, the applicator shapes most often used are circular or "squircular." The squircle applicator has one square and one round end, and it is beveled so that the circular end is longer. - 1985, Hospital Practice,...
2. An object whose shape combines a circle and a square.
   • At the NCI, the applicator shapes most often used are circular or "squircular." The squircle applicator has one square and one round end, and it is beveled so that the circular end is longer. - 1985, Hospital Practice,...