Dictionary.com

tonic

[ ton-ik ]
/ ˈtɒn ɪk /
Save This Word!

noun
adjective
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of tonic

First recorded in 1640–50, tonic is from the Greek word tonikós pertaining to stretching or tones. See tone, -ic

regional variations of tonic

5. See soda pop.

OTHER WORDS FROM tonic

ton·i·cal·ly, adverban·ti·ton·ic, adjective, nounnon·ton·ic, adjectivepre·ton·ic, noun, adjective

Other definitions 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. 2022

How to use tonic in a sentence

British Dictionary definitions for tonic

tonic
/ (ˈtɒnɪk) /

noun
adjective

Derived forms of tonic

tonically, 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

Medical 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.
FEEDBACK