tonic meaning and definition

TONIC noun

Definition of tonic (noun)

1. lime- or lemon-flavored carbonated water containing quinine
   • synonyms: quinine water, tonic water
2. a sweet drink containing carbonated water and flavoring
   • "in New England they call sodas tonics"
   • synonyms: pop, soda, soda pop, soda water
3. (music) the first note of a diatonic scale
   • synonyms: keynote
4. a medicine that strengthens and invigorates
   • synonyms: restorative

TONIC adjective

Definition of tonic (adjective)

1. of or relating to or producing normal tone or tonus in muscles or tissue
   • "a tonic reflex"; "tonic muscle contraction"
2. employing variations in pitch to distinguish meanings of otherwise similar words
   • "Chinese is a tonal language"
   • synonyms: tonal
3. used of syllables
   • "a tonic syllables carries the main stress in a word"
   • synonyms: accented
   • antonym: atonic
4. relating to or being the keynote of a major or minor scale
   • "tonic harmony"
5. imparting vitality and energy
   • "the bracing mountain air"
   • synonyms: bracing, brisk, fresh, refreshful, refreshing