Definition of: sensitize

(sen′sə·tīz) v.t. ·tized, ·tiz·ing
1. To render sensitive.
2. Phot. To make sensitive to light, as a plate or film.
3. Med. To make susceptible or hypersensitive to the action of a drug by repeated injections. [<SENSIT(IVE) + -IZE]
—sen′si·ti·za′tion noun
—sen′si·tiz′er noun