# Catalan surface

> English word · Noun

## Definitions
1. A ruled surface whose rulings are all parallel to a fixed plane.

## Etymology
Named after the Belgian mathematician Eugène Charles Catalan.

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