from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A heliocentric model of the solar system, proposed in the 16th Century by the eponymous astronomer.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (astronomy) Copernicus' astronomical model in which the Earth rotates around the sun
From Copernicus ("a surname") + -an + system. After Polish astronomer Nicolaus Copernicus, who formulated and proposed the theory. (Wiktionary)