PHOTOMETER

An Illustrated Encyclopedic Medical Dictionary · 1894 · p. 11
n. Fot-o"m'e2t-usr. Lat., phqtometrum (from <o, light, and perpov, a measure). Fr., photomdtre. An instrument for measuring or comparing intensities of light. [F.] [s. 261]
Readham'da tam maddeyi gor →