The Collaborative International Dictionary of English v.0.48:
Correctible \Cor*rect"i*ble\ (-r?k"t?-b'l), Correctable \Cor*rect"a*ble\ (-r?k"t?-b'l), a. Capable of being corrected. [1913 Webster]WordNet (r) 3.0 (2006):
correctable adj 1: capable of being returned to the original condition; not necessarily permanent; "a correctable image" 2: capable of being corrected by additions; "an amendable flaw" [syn: amendable, correctable]