noun

• 1A supposed liquid elixir containing gold and capable of conveying eternal youth to the drinker; the elixir of life.

• 2A preparation consisting of a suspension of minute particles of gold in oil and alcohol, formerly used as a medicine, and produced by dissolving gold in aqua regia, pouring oil on the resulting solution to absorb the gold and reduce it to particles, pouring off the oil, and mixing with alcohol.