v. 1 tr. (also absol.) withdraw or revoke (a statement or undertaking). 2 a tr. & intr. (esp. with ref. to part of the body) draw or be drawn back or in. b tr. draw (an undercarriage etc.) into the body of an aircraft. retractable adj. retraction n. retractive adj.
[ L retrahere or (in sense 1) retractare (as RE-, trahere tract- draw) ]