# Triangulum

> English word · Proper noun

## Definitions
1. An autumn constellation of the northern sky whose brightest three stars form a small triangle. It lies near Perseus, between Aries and Andromeda.
2. The Triangulum Galaxy, a relatively nearby spiral galaxy to the Milky Way; M33.

## Etymology
From Latin triangulum (“triangle”).

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