'Sprengel pump' definitions:

Definition of 'Sprengel pump'

From: GCIDE

Sprengel pump \Spreng"el pump`\ (spr[e^]ng"el p[u^]mp`). (Physics) A form of air pump in which exhaustion is produced by a stream of mercury running down a narrow tube, in the manner of an aspirator; -- named from the inventor. [1913 Webster]