drogue parachute

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A parachute used to stabilize or decelerate a fast-moving object, especially a small parachute used to slow down a reentering spacecraft or satellite prior to deployment of the main parachute.
• noun A small parachute used to pull a main parachute from its storage pack.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a small parachute that pulls the main parachute from its storage pack
• noun a parachute used to decelerate an object that is moving rapidly