Standard Lemma guide

photometry

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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Pronunciation

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1

noun

Meaning 1

The measurement of various aspects of light, especially its intensity.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

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

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

measurement of the properties of light (especially luminous intensity)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: measurement, measuring, measure, mensuration

Narrower terms: cytophotometry

History

Etymology

From photo- + -metry.

Across languages

Translations

11 source translations are retained for this English entry.

  • Catalan: fotometria — physics: the measurement of various aspects of light, especially its intensity
  • French: photométrie — physics: the measurement of various aspects of light, especially its intensity
  • Hindi: प्रकाशमिति (prakāśmiti) — physics: the measurement of various aspects of light, especially its intensity
  • Irish: fótaiméadracht — physics: the measurement of various aspects of light, especially its intensity
  • Polish: fotometria — physics: the measurement of various aspects of light, especially its intensity
  • Portuguese: fotometria — physics: the measurement of various aspects of light, especially its intensity
  • Romanian: fotometrie — physics: the measurement of various aspects of light, especially its intensity
  • Spanish: fotometría — physics: the measurement of various aspects of light, especially its intensity
  • Hindi: प्रकाशमिति (prakāśmiti) — astronomy: the measurement of the intensity and spectrum of light from stars
  • Irish: fótaiméadracht — astronomy: the measurement of the intensity and spectrum of light from stars
  • Portuguese: fotometria — astronomy: the measurement of the intensity and spectrum of light from stars