birectangular

Containing two right angles.

Adjective

  1. Containing two right angles.
    • Unlike a normal triangle, a spherical triangle can be birectangular because the sum of its angles is greater than 180 degrees.

Origin

Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- English rectangular English birectangular From bi- + rectangular.