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photometer.

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

10 characters4 syllables approx.English language

Meaning & usage

noun/fəˈtɑmɪtɚ/General-American/ˈfoʊtoʊˌmitɚ/General-American/fəˈtɒmɪtə(ɹ)/Received-Pronunciation/ˈfəʊtəʊˌmiːtə(ɹ)/Received-Pronunciation
  1. Any of several instruments used to measure various aspects of the intensity of light.

Where this word comes from

Etymology tree Proto-Indo-European *bʰeh₂- Proto-Indo-European *-os 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)lbor. French -mètrebor. English -meter English photometer From photo- + -meter.

verb/fəˈtɑmɪtɚ/General-American/ˈfoʊtoʊˌmitɚ/General-American/fəˈtɒmɪtə(ɹ)/Received-Pronunciation/ˈfəʊtəʊˌmiːtə(ɹ)/Received-Pronunciation
  1. To measure some aspect of light (from a star) using a photometer.

Where this word comes from

Etymology tree Proto-Indo-European *bʰeh₂- Proto-Indo-European *-os 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)lbor. French -mètrebor. English -meter English photometer From photo- + -meter.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.