sensitize

(verb) make sensitive or aware. Synonyms: sensitise, sensify, sensibilize, sensibilise. Example: "He was not sensitized to her emotional needs."

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

(verb) make sensitive to a drug or allergen. Synonyms: sensitise. Example: "Long-term exposure to this medicine may sensitize you to the allergen."

(verb) make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion. Synonyms: sensitise. Example: "Sensitize the photographic film."