actinometry

== English == === Etymology === From actino- +‎ -metry. === Pronunciation === IPA(key): /ˌæktɪˈnɒmətɹi/ === Noun === actinometry (countable and uncountable, plural actinometries) the measurement of the heating power of electromagnetic radiation, especially that of solar radiation the measurement of the chemical or actinic energy of light ==== Related terms ==== actinometer actinometric ==== Translations ====