adj 1 a  :  characterized by tonus < contraction of muscle>  : also  :  marked by or being prolonged muscular contraction < convulsions>   b  :  producing or adapted to produce healthy muscular condition and reaction of organs (as muscles)  2 a  :  increasing or restoring physical or mental tone  b  :  yielding a tonic substance ton*i*cal*ly adv 
, n :  an agent (as a drug) that increases body tone .
 
 
 
Similar sounding terms:  den·gue  DNOC  tongue  Tun·ga 
 
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