Electricity. adjusted to oscillations of the same or a particular frequency.
Psychiatry. of or denoting a personality characterized by normal emotional responsiveness to the environment.

Also syn·ton·i·cal, syntonous.

Origin of syntonic

1890–95; < Greek sýnton(os) attuned to, literally, stretched together (verbid of synteínein to harmonize, equivalent to syn- syn- + ton- (derivative of teínein to stretch; see tone) + -os adj. suffix) + -ic
Related formssyn·ton·i·cal·ly, adverbnon·syn·ton·ic, adjectivenon·syn·ton·i·cal, adjectivenon·syn·ton·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for syntonic

Historical Examples of syntonic

British Dictionary definitions for syntonic



psychol emotionally in harmony with one's environment
Derived Formssyntonically, adverb

Word Origin for syntonic

C20: from Greek suntonos in harmony with; see syn-, tone
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

syntonic in Medicine




Characterized by a normal emotional responsiveness to the environment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.