Dictionary.net

• a method of behavior therapy based on the inhibition of one response by the occurrence of another response that is mutually incompatible with it; a relaxation response might be conditioned to a stimulus that previously evoked anxiety

2006 - WordNet 3.0
By Princeton University

• a method of behavior therapy based on the inhibition of one response by the occurrence of another response that is mutually incompatible with it; a relaxation response might be conditioned to a stimulus that previously evoked anxiety

2011 - English Dictionary Database
By DataStellar Co., Ltd