# rugate

> English word · Adjective · IPA /ˈɹuːɡeɪt/

## Definitions
1. Having alternate ridges and depressions; wrinkled.
2. Having a varying refractive index.

## Etymology
From Latin rugatus, past participle of rugare (“to wrinkle”), from ruga (“a wrinkle”).

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