Desensitize

[diː'sensɪtaɪz] or [,di'sɛnsətaɪz]

(verb.) make insensitive; 'His military training desensitized him'.

(verb.) cause not to be sensitive; 'The war desensitized many soldiers'; 'The photographic plate was desensitized'.

Checker: Millicent--From WordNet