Noun
The act of retracting, or drawing back; the state of being retracted; as, the retraction of a cat's claws.
The act of withdrawing something advanced, stated, claimed, or done; declaration of change of opinion; recantation.
The act of retracting or shortening; as, the retraction of a severed muscle; the retraction of a sinew.
The state or condition of a part when drawn back, or towards the center of the body.
Source: Webster's dictionarythe retraction of the landing gear Source: Internet
retraction of the foreskin Source: Internet
After the West Virginia primary, Roosevelt sent Humphrey a written apology and retraction. Source: Internet
But does the retraction mean vaping is safe, and should we be concerned about the validity of other vaping research? Source: Internet
A detailed letter pointing out alleged errors — which J&J has done here — but without a call for retraction is less likely to make authors and journals defensive. Source: Internet
As in the proof using homology, one is reduced to proving that there is no smooth retraction f from the ball B onto its boundary ∂B. Source: Internet