| a chattering or flighty, light-headed person. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
tonic ton·ic (tŏn'ĭk)
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.
tonic definition
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tonic
in music, the first note (degree) of any diatonic (e.g., major or minor) scale. It is the most important degree of the scale, serving as the focus for both melody and harmony. The term tonic may also refer to the tonic triad, the chord built in thirds from the tonic note (as C-E-G in C major). See also tonality.
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