Definition of astronomy
: the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties
Recent Examples of astronomy from the Web
The AMS is a non-profit scientific organization, supported by members and individuals with interest in meteoric astronomy.
Women of color deal with harassment and hostility in several work environments, but a new study suggests that the field of astronomy is especially dire.
Both cultures intertwined their wisdom and knowledge regarding astronomy, mother nature, healing powers, gods, goddesses, the four elements and food, being fire the new light to guide this new hybrid and enriched culture.
Scientists have already plotted the orbits of more than 700,000 known asteroids in the solar system, said Željko Ivezić, a UW astronomy professor and project scientist for LSST.
Ranger programs and astronomy events Summer ranger programs have started as well as the Astronomy/Night Sky Programs at Hurricane Ridge.
So the astronomy community is understandably skeptical when anyone claims to have proof of a new planet.
Learn about animals, astronomy and more scientific wonders at 6000 N. Flagler Drive, West Palm Beach.
A storied machine responsible for some of the greatest advances in modern astronomy, its 200-inch primary mirror set the size limit for five decades.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astronomy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of astronomy
Middle English astronomie, from Anglo-French, from Latin astronomia, from Greek, from astr- + -nomia -nomy
First Known Use: 12th centurySee Words from the same year
ASTRONOMY Defined for English Language Learners
Definition of astronomy for English Language Learners
: the scientific study of stars, planets, and other objects in outer space
ASTRONOMY Defined for Kids
Definition of astronomy for Students
: a science concerned with objects and matter outside the earth's atmosphere and of their motions and makeup
Seen and Heard
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