ALL meanings of astronomy
as·tron·o·my
A a - uncountable noun astronomy Astronomy is the scientific study of the stars, planets, and other natural objects in space. 3
- noun astronomy the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics 3
- noun astronomy the science of the universe in which the stars, planets, etc. are studied, including their origins, evolution, composition, motions, relative positions, sizes, etc. 3
- noun astronomy a book or treatise on this 3
- noun astronomy the science that deals with the material universe beyond the earth's atmosphere. 1
- noun astronomy The branch of science that deals with celestial objects, space, and the physical universe as a whole. 1
- noun astronomy science of stars, space 1
- noun astronomy 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. 0