Medical Dictionary
1tonic
adj ton·ic \ˈtän-ik\
Medical Definition of TONIC
1
a : characterized by tonus <tonic contraction of muscle>; also : marked by or being prolonged muscular contraction <tonic 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 \ˈtän-i-k(ə-)lē\ adverb
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