# tetragon

> English word · Noun · IPA /ˈtɛ.tɹə.ɡɒn/

## Definitions
1. Quadrilateral.
2. An aspect of two planets with regard to the Earth when they are distant from each other ninety degrees, or a quarter-circle.

## Etymology
From tetra- + -gon.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tetragon