Meaning of 'tonic'

adjective

imparting vitality and energy

Synonyms: fresh

adjective

used of syllables

Example: "a tonic syllables carries the main stress in a word"

Synonyms: accented

adjective

relating to or being the keynote of a major or minor scale

Example: "tonic harmony"

adjective

employing variations in pitch to distinguish meanings of otherwise similar words

Synonyms: tonal

adjective

of or relating to or producing normal tone or tonus in muscles or tissue

Example: "a tonic reflex"

noun

a medicine that strengthens and invigorates

Synonyms: restorative

noun

the first note of a diatonic scale in music

Example: "A sonata traditionally ends with a chord containing the tonic."

Synonyms: keynote

noun

a sweet drink containing carbonated water and flavoring

Example: "in New England they call sodas tonics"

Synonyms: pop

noun

lime- or lemon-flavored carbonated water containing quinine

Synonyms: tonic water