from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Material suspended in the air in the form of minute solid particles or liquid droplets, especially when considered as an atmospheric pollutant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any solid or liquid in a finely subdivided state, especially when considered as an atmospheric pollutant.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
Sorry, no etymologies found.