1.nounThe process of immunising signalling and traction power supplies so they don't interfere with each other.
2.nounThe process by which an individual is safely exposed in a controlled manner to a material that is designed to prime their immune system against that material.
"Immunization against influenza is important for all child-care workers."
3.nounOne such exposure.
"The first immunization a baby gets is against HBV."