Diachylon (from Latin diachȳlōn, representing Greek , "[a medicament] composed of juices"), also rendered diachylum or diaculum, was originally a kind of medicament made of the juices of several plants (thus its name), but now commonly the name for lead-plaster, emplastrum plumbi—a plaster made of lead oxide boiled together with olive oil and water.
Diachylon (from Latin diachȳlōn, representing Greek , "[a medicament] composed of juices"), also known as diachylum or diaculum, was initially a type of medicine made from plant juices but is now commonly referred to as lead plaster, emplastrum plumbi—a mixture of lead oxide, olive oil, and water.