( n. )
An instrument for testing the density of gases, consisting of a thin glass globe, which is weighed in the gas or gases, and then in an atmosphere of known density.
( n. )
An instrument for testing the density of gases, consisting of a thin glass globe, which is weighed in the gas or gases, and then in an atmosphere of known density.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012