elaterium
noun
el·a·te·ri·um
ˌeləˈtirēəm
plural -s
: a purgative substance precipitated as a fine powder from the juice of the squirting cucumber on spontaneous evaporation and used in the form of yellowish cakes
Word History
Etymology
Latin, from Greek elatērion (also, squirting cucumber), from neuter of elatērios driving, driving away, purgative, from elatēr driver