photometer

photometer

English

Etymology

Etymology tree
Proto-Indo-European *bʰeh₂-
Proto-Indo-European *bʰéh₂os
Proto-Hellenic *pʰáwos
Ancient Greek φᾰ́ος (phắos)
Ancient Greek φῶς (phôs)
Ancient Greek φωτο- (phōto-)der.
English photo-
Proto-Indo-European *meh₁-
Proto-Indo-European *-tḗr
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English photometer

    From photo- + -meter.

    Pronunciation

    • (General American) IPA(key): /fəˈtɑmɪtɚ/, /ˈfoʊtoʊˌmitɚ/
    • (Received Pronunciation) IPA(key): /fəˈtɒmɪtə(ɹ)/, /ˈfəʊtəʊˌmiːtə(ɹ)/
    • Audio (Southern England):(file)
    • Rhymes: -ɒmɪtə(ɹ), -iːtə(ɹ)

    Noun

    photometer (plural photometers)

    1. (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
    • holophotometer
    • 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

    Derived terms

    Translations

    Verb

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

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

    Anagrams

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