definitions
  • synonyms

tonic

[ ton-ik ]
/ ˈtɒn ɪk /
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SEE MORE SYNONYMS FOR tonic ON THESAURUS.COM

noun

adjective

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RELATED WORDS

cordial, pick-me-up, drug, restorative, pickup, fillip, boost, stimulant, bracer, refresher, strengthener, conditioner, analeptic, roborant

Nearby words

tongues wag, tonguing, tonguing-and-grooving plane, tongzhou, toni, tonic, tonic accent, tonic contraction, tonic convulsion, tonic epilepsy, tonic pupil

Origin of tonic

First recorded in 1640–50, tonic is from the Greek word tonikós pertaining to stretching or tones. See tone, -ic
SYNONYMS FOR tonic
Related formston·i·cal·ly, adverban·ti·ton·ic, adjective, nounnon·ton·ic, adjectivepre·ton·ic, noun, adjective

Regional variation note

5. See soda pop.

Definition for tonic (2 of 2)

-tonic


a combining form occurring in adjectives that correspond to nouns ending in -tonia: catatonic.

Origin of -tonic

see origin at tonic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tonic

British Dictionary definitions for tonic

tonic

/ (ˈtɒnɪk) /

noun

adjective

Derived Formstonically, adverb

Word Origin for tonic

C17: from New Latin tonicus, from Greek tonikos concerning tone, from tonos 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

Medicine definitions for tonic

tonic

[ tŏnĭk ]

adj.

Of or producing tone or tonicity in muscles or tissue.
Characterized by continuous tension or contraction of muscles, as a convulsion or spasm.
Producing or stimulating physical, mental, or emotional vigor.

n.

An agent, such as a medication, that restores or increases body tone.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.