lümen
Türkçe lümen kelimesinin İngilizce karşılığı.[lumen] n. unit for measuring the rate at which light is transmitted (Optics); cavity, hollow space (Anatomy, Botany) n. (Physics) lumen, unit of light; cavity; (Botany) cellular cavity n. lumen, unit for measuring the rate at which light is transmitted (Optics); cavity, hollow space (Anatomy, Botany)