pneumatic trough

American  

noun

Chemistry.

1. a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.

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pneumatic trough British  

noun

1. chem a shallow dishlike vessel filled with a liquid, usually water, and used in collecting gases by displacement of liquid from a filled jar held with its open end under the surface of the liquid

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Etymology

Origin of pneumatic trough

First recorded in 1820–30

Example Sentences

See Examples For:

pneumatic trough

He stared, laughed, then walked away to his pneumatic trough.

From Cynthia Wakeham's Money by Green, Anna Katharine

It was withdrawn at the pneumatic trough from the gas through the water, heated red-hot by the spirit-lamp and blowpipe, and then returned when cold into the same portion of gas.

From Experimental Researches in Electricity, Volume 1 by Faraday, Michael

His eyes were gazing with horrible fixity at a pneumatic trough.

From The Alkahest by Wormeley, Katharine Prescott

Priestley's pneumatic trough is at this day to be found in every laboratory; it is extremely simple and extremely perfect.

From Heroes of Science Chemists by Muir, M. M. Pattison (Matthew Moncrieff Pattison)

This, I at once learned, was the pneumatic trough, the vessel in which the gases were collected.

From The Life of the fly; with which are interspersed some chapters of autobiography by Teixeira de Mattos, Alexander