-ˌlād.ə(r), -ātə- noun
( -s )
Etymology: percolate + -or
: one that percolates: as
a. : a coffeepot in which boiling water rising through a tube is repeatedly deflected downward through a perforated basket containing ground coffee beans to extract their essence
b. : an apparatus for the extraction of a drug with a liquid solvent by downward displacement