tonic

²tonic

noun

Definition of TONIC

1

: the first tone of a major or minor scale : keynote

2

a : an agent (as a drug) that increases body tone b : one that invigorates, restores, refreshes, or stimulates <a day in the country was a tonic for him> c : a liquid preparation for the scalp or hair d chiefly New England : a carbonated flavored beverage e : tonic water

3

: a voiced sound

First Known Use of TONIC

1797

Other Pharmacology Terms

anodyne, cathartic, emetic, emollient, liniment, paregoric, poultice, purgative, soporific, spectrum

Rhymes with TONIC

chronic, conic