from The American Heritage® Dictionary of the English Language, 4th Edition
- n.pl. See pool2.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A family of billiards games played on a specific class of billiards table, having six receptacles called pockets along the rails, in which balls are deposited as the main goal of play.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of various games played on a pool table having 6 pockets
Sorry, no etymologies found.
I recall at the University of Virginia in 1950 seeing an exhibition of pocket billiards by Willie Mosconi.