retraction
1. [ noun ] the act of pulling or holding or drawing a part back
Examples:

"the retraction of the landing gear" "retraction of the foreskin"

Related terms: motion draw_in
2. [ noun ] a disavowal or taking back of a previous assertion
Synonyms: recantation abjuration
Related terms: disavowal withdrawal abjure
Similar spelling:   retract
  retractile
  retrospection
  retractor
  retracted
  retrace
  retroactive
  retractable
  retroactively
  retrograde