Dictionary.com

tonic

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

noun

adjective

QUIZZES

QUIZ YOURSELF ON THE MANY TYPES OF NOUNS

They're everywhere you turn, but can you identify the 10 types of nouns easily? This quiz will test your mettle against singular, plural, concrete, abstract, common, proper, collective, compound, countable, and uncountable nouns!
Question 1 of 7
Shoelaces, rainbow, toothpaste, and haircuts are all what type of noun?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of tonic

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

regional variation note for 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

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. 2021

Example sentences from the Web for tonic

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