backswing definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Golf, Racket Sports, etc. that part of a player's swing in which the club, racket, etc. is swung backward preparatory to the forward part of the swing
backswing definition by American Heritage Dictionary
The initial part of a stroke, in which one moves a racket or club, for instance, to the position from which forward motion begins.