luminosity
noun
Simple meaning
Emitting or reflecting light.
Pronunciation
Say it like this:
loomihnohsihteeSay the bold part a little louder.
IPA pronunciation (US)
lumɪˈnoʊsɪti
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
The quality of being luminous; emitting or reflecting light
“Its luminosity is measured relative to that of our sun.”
astronomy
The rate at which a star radiates energy in all directions.
physics
The ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor
Word at a Glance
- Difficulty
- C1 · Advanced
- Frequency
- Uncommon
- Typical Use
- Primarily written
Word Aura™
How this word commonly comes across.
Aura for this meaning
This meaning: The quality of being luminous; emitting or reflecting light
Used this way, luminosity is a common word that usually carries little praise or criticism of its own. It usually sounds natural in a wide range of settings.
“Its luminosity is measured relative to that of our sun.”
- Emotional tone
- Neutral
- Formality
- Neutral
- Intensity
- Not strongly marked
- How common
- Common
- Connotation
- Matter-of-fact
- Usage feel
- Neutral and straightforward
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
More ways to use luminosity
- “Its luminosity is measured relative to that of our sun.”noun
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Common Patterns and Combinations
How this word naturally appears with others.
Related Words
Connected to the same idea, not synonyms.
More about this wordSynonyms, forms, origin
Synonyms
Sense: being luminous
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.