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an external metal structure fitted around parts of an aircraft, car, vessel, etc., to reduce drag
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A structure or surface on an aircraft or rocket that functions to reduce drag, such as the streamlined nose of a satellite-launching rocket.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
An auxiliary piece of structure added between two parts, usually at a junction between two parts. It is meant to reduce drag.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved