squircle

plural squircles

1. algebraic geometryA 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, volume 20, page 131

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, volume 20, page 131

   1 more example

   Smucker sued Trader Joe’s in federal court in Ohio last fall, claiming Trader Joe’s committed a trademark violation when it introduced frozen peanut butter and jelly sandwiches with the same round shape and crimped edges as Uncrustables. The lawsuit further alleged that Trader Joe’s put its crustless PB&Js peanut in packaging that too closely resembled the coloring of an Uncrustables box and featured a similar photograph of a sandwich with a bite taken out of one side. In court filings, Trader Joe’s said its frozen sandwiches aren’t round but shaped as “squircles,” or square sandwiches with rounded edges.

   , Dee-Ann Durbin, “Judge says Smucker’s lawsuit against Trader Joe’s over frozen PB&J can proceed”, in The Associated Press, retrieved 14 Sep 2026