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/əˈstrɒnəmi/
Meaning & Definition
noun
the branch of science that deals with celestial objects, space, and the physical universe as a whole.
Her passion for astronomy led her to study astrophysics in college.
the scientific study of the universe beyond the Earth’s atmosphere.
The telescope was a significant advancement in the field of astronomy.
the observation and understanding of celestial events and phenomena.
Many cultures throughout history have had their own interpretations of astronomy based on the stars.
the measurement of time and the calendar based on celestial movements.
Ancient civilizations relied on astronomy to create calendars for agricultural activities.
Etymology
Derived from the Greek words 'astron' (star) and 'nomos' (law), meaning 'law of the stars'.
Common Phrases and Expressions
astronomy club
A group of people interested in studying and observing celestial objects.
amateur astronomer
A person who studies astronomy as a hobby rather than as a profession.
astronomical unit
A standard unit of measurement used in astronomy to describe distances within the solar system.
Related Words
astrophysics
The branch of astronomy that deals with the physical properties and behavior of celestial bodies.
cosmonautics
The science and technology of space travel and exploration.
star
A luminous celestial body made of plasma held together by gravity.
Slang Meanings
Star-gazing
Let's go star-gazing tonight; it's perfect for some astronomy!
Astro nerd
He's such an astro nerd; he can name all the constellations.