1. making someone or something more sensitive or responsive to particular stimuli or influences
Usage: British spelling; present participle of sensitise
2. causing an allergic reaction or increased sensitivity to a substance
Usage: medical context

Examples

• The documentary is sensitising viewers to environmental issues.
• Repeated exposure to the chemical is sensitising workers to allergic reactions.
• The campaign aims at sensitising the public about mental health.
• This medication may be sensitising your skin to sunlight.
• The training program is sensitising staff to cultural differences.
• Certain preservatives are known for sensitising sensitive individuals.