polar air[′pō·lər ′er]
A type of air whose characteristics are developed over high latitudes; there are two types: continental polar air and maritime polar air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
air masses formed outside of the earth’s tropical latitudes. The term “polar air” is often used to refer only to mid-latitude air masses; air masses formed at higher latitudes are called arctic air.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.