Any of several instruments in which fine particles (dust) in a gas are analysed by blowing them through a jet onto a wetted plate, prior to being counted. Typically used for particle analysis

plural of impinger

plural of impingement

Third-person singular simple present indicative form of impinge

simple past tense and past participle of impinge

Striking against or upon.

present participle of impinge

An impingement.

(transitive, now rare) To make a physical impact on. / (intransitive, figuratively) To interfere with. / (intransitive, figuratively) To have an effect upon, especially a negative one.

The act of impinging.