flacon/ˈflækɒn/EtymologyBorrowed from French flacon. Doublet of fiasco, flagon, and flask.flacon means A small stoppered glass bottle, often used for keeping perfume. Lexicurio rates it Rare gem — a strength score of 79 out of 100.nounA small stoppered glass bottle, often used for keeping perfume.“October 24, 1872, Henry Wadsworth Longfellow, letter to G. W. Greene two glass flacons for the ink”