precipitator

noun

pre·​cip·​i·​ta·​tor -ˌtātə(r) 

-ātə-

plural -s

: one that precipitates: such 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

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