verb (used with object), hy·per·sen·si·tized, hy·per·sen·si·tiz·ing.

Photography. to treat (a film or emulsion) so as to increase its speed.
Pathology. to strongly heighten a reaction upon reexposure to a particular antigen.

Also especially British, hy·per·sen·si·tise.

Origin of hypersensitize

First recorded in 1895–1900; hypersensit(ive) + -ize
Related formshy·per·sen·si·ti·za·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for hypersensitize




(tr) to treat (a photographic emulsion), usually after manufacture and shortly before exposure, to increase its speed
Derived Formshypersensitization or hypersensitisation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012