Associations to the word «Astronomy»

Wiktionary

ASTRONOMY, noun. The study of the physical universe beyond the Earth's atmosphere, including the process of mapping locations and properties of the matter and radiation in the universe.

Dictionary definition

ASTRONOMY, noun. The branch of physics that studies celestial bodies and the universe as a whole.

Wise words

A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.