/duy ak"euh lon'/ , n. Med.
an adhesive plaster consisting chiefly of litharge and oil, used in the treatment of wounds and excoriations.
Also, diachylum /duy ak"euh leuhm/ .
[ 1275-1325; diáchylon (something) made of juices, equiv. to dia- DIA- + chylós juice (also Latinized as diachylum whence E sp. with -um ); r. ME diaculon diaquilon diachylon ]