transcription, транскрипция: [ ˌak-tə-ˈnä-mə-tər ]
noun
Date: 1833
: any of various instruments for measuring the intensity of incident radiation ; especially : one in which the intensity of radiation is measured by the speed of a photochemical reaction
• ac·ti·no·me·tric -nō-ˈme-trik adjective
• ac·ti·nom·e·try -ˈnä-mə-trē noun