noun (used with a singular verb)

the branch of physics that deals with energy.

Origin of energetics

First recorded in 1850–55; see origin at energetic, -ics
Related formsen·er·get·i·cist, nounen·er·ge·tis·tic [en-er-ji-tis-tik] /ˌɛn ər dʒɪˈtɪs tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of energetics

British Dictionary definitions for energetics



(functioning as singular) the branch of science concerned with energy and its transformations
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