from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A red dwarf star, part of the Alpha Centauri system. It is the nearest star to Earth's solar system.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the nearest star to the sun; distance: 4.3 light years
From Latin proximus ("nearest, next") and centaurī ("of the constellation Centaurus") (Wiktionary)