swan dive 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.
a forward dive in which the legs are held straight and together, the back is arched, and the arms are stretched out to the sides: the arms are brought forward and together just before entering the water
swan dive definition by American Heritage Dictionary
A forward dive performed with the legs straight together, the back arched, and the arms stretched out from the sides and then brought together over the head as the diver enters the water.