# rufiopin

> English word · Noun

## Definitions
1. A yellowish-red crystalline substance related to anthracene and obtained from opianic acid.

## Etymology
From Latin rufus (“reddish”) + opianic acid.

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