(transplant) rejection; immune rejection
Medical term for the body's immune system attacking a transplanted organ or tissue.
After transplant surgery, immunosuppressants are used to prevent rejection.
strong negative reaction; backlash; rejection (figurative)
Figurative extension: a strong, often emotional, rejection or resistance to an idea, person, or change.
There was a strong backlash from employees against the new rule.
He sometimes shows a strong negative reaction to people he meets for the first time.
Rejection can occur after a transplant.
He reacted with strong resistance to the new system.
The rejection reaction can be suppressed with medication.
Some people react with instant rejection just at hearing that word.