Donald Trump's fascist-lite ravings are anathema to them, but with moderate Republicans migrating to Hillary Clinton, some on the left worry that a President Clinton might feel less obliged to push a vigorous liberal program.
The definition of astro as a prefix means relating to things that are beyond Earthâs atmosphere. A science that studies the physical properties of celestial bodies is an example of astrophysics. star or stars: astrophysics.
Wiktionary(5.00 / 1 vote)Rate this definition: 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.