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n. Measurement of the properties of light, especially luminous intensity.

n. the measurement of various aspects of light, especially its intensity

n. the measurement of the intensity and spectrum of light from stars

n. That branch of science which treats of the measurement of the intensity of light.

n. The measurement of the relative amounts of light emitted by different sources.

n. Measurement of the amount of insufficiency of the external muscles of the eye; the scientific use of the phorometer.

n. In biology, the reactional movement, positive and negative, with an indifference point between, of organisms under changing intensity of illumination.

n. measurement of the properties of light (especially luminous intensity)

"Christie: There are lots of ways you can get involved in observational astronomy, but in talking about photometry, which is a measurement of star brightness, you basically just need a telescope with as much aperture as you can afford."

measure    mensuration    measurement    measuring   

photographic photometry    flicker photometry    heterochromatic photometry   

photometer   

cytophotometry   

absorptiometry    extractonly    microanalysis    multifrequency    undevelopedus