• (n.) An apparatus employed to indicate the presence, or the amount, of ozone.
O·zo'no·scope noun [ Ozone + -scope .] (Chemistry) An apparatus employed to indicate the presence, or the amount, of ozone. 
Type: Term Pronunciation: ō-zō′nō-skōp Definitions: 1. Filter paper saturated with starch and potassium iodide or with litmus and potassium iodide; turns blue in the presence of ozone.
A ozonoscvope is an apparatus employed to indicate the presence, or the amount, of ozone.