The Collaborative International Dictionary of English v.0.48:
Retractable \Re*tract"a*ble\ (r[-e]*tr[=a]kt"[.a]*b'l), a. [Cf. F. r['e]tractable.] Capable of being retracted; retractile. [1913 Webster]WordNet (r) 3.0 (2006):
retractable adj 1: capable of being retracted; "retractable landing gear"