sensitization

definition: rendering an organism sensitive to a serum by a series of injections
example:
speech part: noun
synonyms: sensitizing sensitising sensitisation
definition: (psychology) the process of becoming highly sensitive to specific events or situations (especially emotional events or situations)
example:
speech part: noun
synonyms: sensitisation
definition: the state of being sensitive (as to an antigen)
example:
speech part: noun
synonyms: sensitisation

How sensitization is being used?