from The American Heritage® Dictionary of the English Language, 4th Edition
- Copernicus, Nicolaus 1473-1543. Polish astronomer who advanced the theory that Earth and the other planets revolve around the sun, disrupting the Ptolemaic system of astronomy.
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- proper n. A surname.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. Polish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)
- n. a conspicuous crater on the Moon
Sorry, no etymologies found.