tonic

 
Pronunciation: /ˈtɒnɪk/

noun

  • 1a medicinal substance taken to give a feeling of vigour or well-being.
  • something with an invigorating effect: being needed is a tonic for someone at my age
  • 3 Music the first note in a scale which, in conventional harmony, provides the keynote of a piece of music.

adjective

  • 1giving a feeling of vigour or well-being; invigorating: a tonic body shampoo
  • 2 Music relating to or denoting the first degree of a scale.
  • 3 Phonetics denoting or relating to the syllable within a tone group that has greatest prominence, because it carries the main change of pitch.
  • 4relating to or restoring normal tone to muscles or other organs.
  • Physiology relating to, denoting, or producing continuous muscular contraction.

Derivatives

tonically

adverb

Origin:

mid 17th century: from French tonique, from Greek tonikos 'of or for stretching', from tonos (see tone)