noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A right-angle triangle.
2. 2
   A rectangular figure.
3. 3
   A multi-dimensional figure in which all sides result in a right-angle, typically surpassing the restrictions of 3 dimensions.

Etymology

From ortho- + -gon.

Related phrases

right angle

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.