- to render sensitive.
- to render (a film or the like) sensitive to light or other forms of radiant energy.
- to render sensitive to an antigenic substance.
- to become sensitized.
- to make or become sensitive
- to render (an individual) sensitive to a drug, allergen, etc
- to make (a material) sensitive to light or to other actinic radiation, esp to light of a particular colour, by coating it with a photographic emulsion often containing special chemicals, such as dyes