noun (used with a singular verb)
the branch of psychology that deals with pleasurable and unpleasurable states of consciousness.
Origin of hedonics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun (functioning as singular)
the branch of psychology concerned with the study of pleasant and unpleasant sensations
(in philosophy) the study of pleasure, esp in its relation to duty
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
The branch of psychology that studies pleasant and unpleasant sensations and states of mind.
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