Vacuum Boyleanum

Such a vacuum as can be produced by Boyle's improved air-pump, the nearest approach to a vacuum practicable with human instruments.

The Guerickian vacuum is that produced by ordinary air-pumps, so called from Otto von Guericke, who devised the air-pump.

The Torricellian vacuum is the vacuum produced by a mercury-pump.

Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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