eupyrion /juːˈpɪɹi.ən/ noun1 •(no longer used, historical) A device historically used for obtaining instantaneous light, such as a lucifer match.A flint and steel, with matches, or, what is far better, an eupyrion, should always be conveniently placed in the laboratory, and near to it a candle and candlestick — 1830 formseupyrions