Photometrynoun
(physics) The measurement of various aspects of light, especially its intensity.
Photometrynoun
(astronomy) The measurement of the intensity and spectrum of light from stars.
Photometrynoun
That branch of science which treats of the measurement of the intensity of light.
Photometrynoun
measurement of the proterties of light (especially luminous intensity)
Spectrophotometrynoun
the quantitative analysis of electromagnetic spectra by use of a spectrophotometer; especially in order to determine the structure or quantity of a substance
Spectrophotometrynoun
The art of comparing, photometrically, the brightness of two spectra, wave length by wave length; the use of the spectrophotometer.
Spectrophotometrynoun
the art or process of measuring the degree of absorption of light at different wavelengths by a chemical substance, by means of a spectrometer or spectrophotometer. It is a technique for chemical analysis.
Spectrophotometry
Spectrophotometry is a branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. Spectrophotometry uses photometers, known as spectrophotometers, that can measure the intensity of a light beam at different wavelengths.