- as|tron|o|my
- as|tron|o|my «uh STRON uh mee», noun.1. the science of the sun, moon, planets, stars, and all other celestial bodies. It deals with their composition, motions, relative positions, distances, and sizes, as well as with the earth in its relation to them.2. plural -mies. a textbook or treatise on this science.╂[< Latin astronomia < Greek astronomíā < ástron star + némein dictate the laws of]
Useful english dictionary. 2012.