from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A BIRO brand ballpoint pen.
- n. Any ballpoint pen.
- n. Ink from a ballpoint pen.
from the GNU version of the Collaborative International Dictionary of English
- n. a pen with small metal ball as point of transfer of ink to paper; same as ballpoint pen.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a pen that has a small metal ball as the point of transfer of ink to paper
From the BIRO brand of pens made by the BIC corporation, which were named after László Bíró, the inventor of the pen. (Wiktionary)