astrophysics
noun
Simple meaning
The branch of astronomy concerned with the physical and chemical properties of celestial bodies.
Pronunciation
Say it like this:
astrohfiziksSay the bold part a little louder.
IPA pronunciation (US)
æstɹoʊˈfɪzɪks
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 branch of astronomy concerned with the physical and chemical properties of celestial bodies
The branch of astronomy or physics that deals with the physical properties of celestial bodies and with the interaction between matter and radiation in celestial bodies and in the space between them.
Word at a Glance
- Difficulty
- B2 · Upper Intermediate (estimated)
- Frequency
- Moderately Common
- Formality
- Technical
Word Aura™
How this word commonly comes across.
This meaning: The branch of astronomy concerned with the physical and chemical properties of celestial bodies
Used this way, astrophysics is a specialist word that usually carries little praise or criticism of its own. This is a scientific use: it names something precisely within a field of study, so it appears in research and teaching more than in conversation.
- Emotional tone
- Neutral
- Formality
- Specialist/technical
- Intensity
- Not strongly marked
- How common
- Specialized
- Connotation
- Clinical and technical
- Usage feel
- Technical and specialized
Where it naturally appears
- Science
- Academic writing
- Technical/specialist writing
Usage note
In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
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Common Patterns and Combinations
How this word naturally appears with others.
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Word Family
Related forms, grouped by how they connect.
Word family
Words built from the same root.
Related to The branch of astronomy concerned with the physical and chemical properties of celestial bodies.
Related Words
Connected to the same idea, not synonyms.
- astronomynoun
- geophysicsnoun
- astronomicaladjective
- biophysicsnoun
- observatorynoun
- relativitynoun
- planetaryadjective
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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.