Difference between Shrink Back and Retract

SHRINK BACK vs RETRACT: NOUN

The pricking of a horse's foot in nailing on a shoe.
In farriery, the prick of a horse's foot in nailing a shoe, requiring the nail to be withdrawn.
A retractation; recantation.
A falling back; a retreat.

Pull away from a source of disgust or fear
Pull inward or towards a center
Formally reject or disavow a formerly held belief, usually under pressure
To pull back inside (for example, an airplane retracting its wheels while flying).
To take back or withdraw something one has said.
Use a surgical instrument to hold open (the edges of a wound or an organ)

To draw back; draw in: sometimes opposed to protract or protrude: as, a cat retracts her claws.
To withdraw; remove.
To take back; undo; recall; recant: as, to retract an assertion or an accusation.
To undo or unsay what has been done or said before; recall or take back a declaration or a concession; recant.
To draw or shrink back; draw in; recede.
To contract; lessen in length; shorten.

Twitchingly, Hem and haw, Rejolt, Agrise, Remord, Chicken out, Hesitation, Cringe, Mammer, Swivet, Move involuntarily, Recoil, Wince, Flinch, Retract

Shove, Relinquish, Withdraw, Terminate, Abandon, Remove, Backtrack, Revoke, Renounce, Retraction, Shrink back, Draw in, Forswear, Abjure, Recant

Tremble, Shudder, Twitchingly, Hem and haw, Rejolt, Agrise, Remord, Chicken out, Hesitation, Cringe, Mammer, Swivet, Move involuntarily, Wince, Flinch

Pull, Depress, Forego, Stick, Shrink, Bury, Unsay, Revisit, Waive, Terminate, Abandon, Remove, Revoke, Shrink back, Forswear

It was sound that thundered through the castle and caused those watching to shrink back.
We must not shrink back from our calling as a holy priesthood to God.
You shrink back at first but His touch is friendly and gentle.
After penetration, the vagina and introitus shrink back to their original size.
It helps my stomach shrink back to a normal size so quickly.
DMV tomorrow to get my license changed before I shrink back.
To shrink back from the passion that stirred inside me.
We are not of those who shrink back to destruction.
Yet the Lutherans shrink back from that conclusion.
Hesitate, vacillate, waver, falter, demur, shrink, hang back, shrink back, hang fire, be in suspense.

Retract switch to adjust the roller tube position.
Load Indicator, which retract into a Thermoplastic Housing.
The court ordered SUNY to retract this notice.
The guardians can extend and retract their spikes.
Extend and retract multiple sections within a GUI.
Infuriated, Wilson ordered Lansing to retract his statement.
She accepted that he did not retract in writing, but maintained that he said that he would retract.
Will my bicep continue to retract or after a certain will the bicep no longer retract?
In retract mode, a dynamic table and an external connector exchange ADD and RETRACT messages.
Retract cervical spine to neutral; then retract scapula and elbows hold.