1 (formal) to say that sth you have said earlier is not true or correct or that you did not mean it:
[VN] He made a false confession which he later retracted. * They tried to persuade me to retract my words.
2 [VN] (formal) to refuse to keep an agreement, a promise, etc:
to retract a bid / an offer
3 (technical) to move back into the main part of sth; to pull sth back into the main part of sth:
[V] The animal retracted into its shell. * The undercarriage failed to retract. * [VN] The undercarriage was fully retracted.
