-ˌtād.ə(r), -ātə- noun
( -s )
: one that precipitates: as
a.
(1) : a person who precipitates some act or event : hastener
(2) : an operator of a precipitating machine
(3) : a worker who precipitates silver or gold from cyanide solution in zinc boxes or with zinc dust
b.
(1) : an apparatus for causing precipitation
(2) : an apparatus used in electrostatic precipitation that contains the collecting and discharge electrodes and may be characterized by a series of parallel pipes or plates through or between which the gas passes — called also electrical precipitator, electrostatic precipitator