A0069200 (ăk′tə-nŏm′ĭ-tər)n. Any of several radiometric instruments, such as a pyrheliometer, used chiefly for meteorological measurements of terrestrial and solar radiation.ac′ti·no·met′ric(-nō-mĕt′rĭk), ac′ti·no·met′ri·cal adj.ac′ti·nom′e·try n.Thesaurus
Adj.
1.
actinometrical - of or related to actinometry actinometric
actinometrical - of or related to actinometry