What is the meaning of restorative?

noun

• A medicine that strengthens and invigorates.
  • synonyms: tonic
• A device for treating injury or disease.
  • synonyms: corrective

adjective

• Tending to impart new life and vigor to.
  • usage: "the renewing warmth of the sunshine"
  • synonyms: renewing, reviving, revitalizing, revitalising
• Promoting recuperation.
  • usage: "recuperative powers"; "strongly recuperative remedies"; "restorative effects of exercise"
  • synonyms: recuperative