noun
Usage: usually capitalized G
Etymology: after H. Geissler
: an air pump based on the principle of the Torricellian vacuum and having its vacuum produced by the flow of mercury back and forth between a fixed and a vertically adjustable reservoir
noun
Usage: usually capitalized G
Etymology: after H. Geissler
: an air pump based on the principle of the Torricellian vacuum and having its vacuum produced by the flow of mercury back and forth between a fixed and a vertically adjustable reservoir
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012