Also found in: Dictionary, Thesaurus, Acronyms, Wikipedia.
A wind which has a component directed perpendicularly to the course (or heading) of an exposed, moving object.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
i. A wind blowing at an angle to the course or to the runway direction.
ii. In the case of an airfield circuit, it refers to a path that is 90° to the takeoff and landing direction. The one that is 90° after takeoff is called the first crosswind, and the one 90° to the landing direction is called the base leg, or final crosswind.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved