-
A colorless, odorless, tasteless, gaseous mixture, mainly nitrogen (approximately 78 percent) and oxygen (approximately 21 percent) with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases.
(noun)
-
This mixture with varying amounts of moisture and particulate matter, enveloping the earth; the atmosphere.
(noun)
-
The sky; the firmament.
(noun)
-
A giant void; nothingness: The money vanished into thin air.
(noun)
-
An atmospheric movement; a breeze or wind.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.