PHOTOMETER

photometer

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

Source: WordNet® 3.1

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Etymology

Noun

photometer (plural photometers)

(physics) Any of several instruments used to measure various aspects of the intensity of light.

Hyponyms

• colorimetric photometer

• distribution photometer

• electronic photometer

• flame photometer

• flicker photometer

• grease spot photometer

• infrared photometer

• integrating-sphere photometer

• Joly photometer

• Kepler photometer

• light-distribution photometer

• photoelectric photometer

• photoemissive tube photometer

• shadow photometer

• spectrophotometer

• sphere photometer

• telephotometer

• ultraviolet photometer

• visual photometer

• wax-block photometer

• wedge photometer

Verb

photometer (third-person singular simple present photometers, present participle photometering, simple past and past participle photometered)

(astronomy) To measure some aspect of light (from a star) using a photometer.

Anagrams

• prototheme

Source: Wiktionary

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Pho*tom"e*ter, n. Etym: [Photo- + -meter: cf. F. photomètre.] (Physics)

Definition: An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.

Source: Webster’s Unabridged Dictionary 1913 Edition

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