# Halleyan

> English word · Adjective

## Definitions
1. Of or relating to Edmond Halley (1656–1742), English astronomer, mathematician, meteorologist, and physicist, best known for discovering Halley's Comet.

## Etymology
From Halley + -an.

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