photometer

/fəˈtɑmədər/

Other forms: photometers

Definitions of photometer

1. noun

   photographic equipment that measures the intensity of light
   synonyms: exposure meter, light meter

   types:

   cytophotometer

   a photometer that can be used to locate and identify chemical compounds in a cell by measuring the intensity of the light that passes through stained sections of the cytoplasm

   type of:

   photographic equipment

   equipment used by a photographer
2. noun

   measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
   types:

   spectrophotometer

   a photometer for comparing two light radiations wavelength by wavelength

   type of:

   measuring device, measuring instrument, measuring system

   instrument that shows the extent or amount or quantity or degree of something