Characterized by continuous muscular contraction; as, tonic convulsions.
Of or relating to tones or sounds; specifically (Phon.), applied to, or distingshing, a speech sound made with tone unmixed and undimmed by obstruction, such sounds, namely, the vowels and diphthongs, being so called by Dr. James Rush (1833) " from their forming the purest and most plastic material of intonation."
Of or pertaining to tension; increasing tension; hence, increasing strength; as, tonic power.
Increasing strength, or the tone of the animal system; obviating the effects of debility, and restoring healthy functions.
A tonic element or letter; a vowel or a diphthong.
The key tone, or first tone of any scale.
A medicine that increases the strength, and gives vigor of action to the system.
Christmas is a tonic for our souls. It moves us to think of others rather than of ourselves. It directs our thoughts to giving. B. C. Forbes
Good humor is a tonic for mind and body. It is the best antidote for anxiety and depression. It is a business asset. It attracts and keeps friends. It lightens human burdens. It is the direct route to serenity and contentment. Grenville Kleiser
There is no medicine like hope, no incentive so great, and no tonic so powerful as expectation of something tomorrow. Orison Swett Marden