Definition of pullbacks:
(n) :
The act or result of pulling back; a withdrawal.
(n) :
(finance) A reduction in the price of a financial instrument after reaching a peak
(n) :
(film) The act of drawing a camera back to broaden the visible scene.
(n) :
(sports) An attacking pass from the wing into a position further from the attacking goal line.
(n) :
(dated or archaic) Something that holds back; a drawback; a hindrance.
(n) :
(differential geometry) The map between cotangent bundles of manifolds corresponding to a smooth map between smooth manifolds, which at each point is the dual map to the corresponding pushforward.