
Noah Webster
Eudiometer
EUDIOM'ETER, noun [Gr. serene, and Jove, air, and measure.]
An instrument for ascertaining the purity of the air, or the quantity of oxygen it contains.

EUDIOM'ETER, noun [Gr. serene, and Jove, air, and measure.]
An instrument for ascertaining the purity of the air, or the quantity of oxygen it contains.