English noun: photometer | |||
1. | photometer (artifact) measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source | ||
Broader (hypernym) | measuring device, measuring instrument, measuring system | ||
Narrower (hyponym) | spectrophotometer | ||
2. | photometer (artifact) photographic equipment that measures the intensity of light | ||
Synonyms | exposure meter, light meter | ||
Broader (hypernym) | photographic equipment | ||
Narrower (hyponym) | cytophotometer | ||