# Cassegrainian

> English word · Adjective

## Definitions
1. Of or relating to Laurent Cassegrain (ca. 1629—1693), Catholic priest remembered as the probable inventor of the Cassegrain reflector, a folded two-mirror reflecting telescope.

## Etymology
From Cassegrain + -ian.

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