Webster’s Revised Unabridged Dictionary · 1913
Ozonoscope
O·zo′no·scope, n. [Ozone + -scope.] (Chem.) An apparatus employed to indicate the presence, or the amount, of ozone.
Webster’s Revised Unabridged Dictionary · 1913
O·zo′no·scope, n. [Ozone + -scope.] (Chem.) An apparatus employed to indicate the presence, or the amount, of ozone.