|Main Entry:||air quality|
|Part of Speech:||n|
|Definition:||a measurement of the pollutants in the air; a description of healthiness and safety of the atmosphere|
|Example:||Smog is a mixture of pollutants, principally ground-level ozone and produced by chemical reactions, that greatly affects air quality.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a chattering or flighty, light-headed person.|
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.