Webster’s Revised Unabridged Dictionary · 1913
Methanometer
Meth′a·nom′e·ter, n. [Methane + -meter.] An instrument, resembling a eudiometer, to detect the presence and amount of methane, as in coal mines.
Webster’s Revised Unabridged Dictionary · 1913
Meth′a·nom′e·ter, n. [Methane + -meter.] An instrument, resembling a eudiometer, to detect the presence and amount of methane, as in coal mines.