Verb
1. make sensitive or aware;
"He was not sensitized to her emotional needs"2. 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"3. make sensitive to a drug or allergen;
"Long-term exposure to this medicine may sensitize you to the allergen"4. make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion;
"sensitize the photographic film"