- desensitize (v.)
- 1904; see de- "do the opposite of" + sensitize. Originally of photography development; psychological sense is first recorded 1935. Related: Desensitized; desensitizing.
- sensitization (n.)
- 1862, originally in photography, noun of action from sensitize.
- sensitize (v.)
- 1856, in photography; see sensitive + -ize. Of persons from 1880. Related: Sensitized; sensitizing.