Meaning of sensitise

(verb) cause to sense; make sensitive; "She sensitized me with respect to gender differences in this traditional male-dominated society"; "My tongue became sensitized to good wine"

make sensitive to a drug or allergen; "Long-term exposure to this medicine may sensitize you to the allergen"

make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion; "sensitize the photographic film"

make sensitive or aware; "He was not sensitized to her emotional needs"