transcription, транскрипция: [ ˈfō-ˌtän ]
noun
Etymology: phot- + -on (II)
Date: 1916
1. : a unit of intensity of light at the retina equal to the illumination received per square millimeter of a pupillary area from a surface having a brightness of one candle per square meter
2. : a quantum of electromagnetic radiation
• pho·ton·ic fō-ˈtä-nik adjective