verb (used with object), hy·po·sen·si·tized, hy·po·sen·si·tiz·ing. Medicine/Medical.
to cause (a person) to become less sensitive to (a substance producing an allergic reaction); desensitize.
Also especially British, hy·po·sen·si·tise.
Origin of hyposensitize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(tr) to desensitize; render less sensitive
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
To make less sensitive, as to an allergen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.