A rehydration drink is a special kind of drink that helps to replace lost fluids and minerals in your body when you are dehydrated. It is designed to help you feel better and get hydrated again. Full definition
Their test drinks included still and sparkling water, soda (Coke and Diet Coke), sports drink (Powerade), Orange Juice, lager beer, black coffee, black tea (hot and cold), milk (skim and normal), and an oral rehydration drink designed for children with prolonged diarrhea. (mindbodygreen.com)
Tropically Sporty: coconut water is a great rehydration drink. (rudehealth.com)
Shirreffs SM, Watson P, Maughan RJ, Milk as an effective post-exercise rehydration drink. (shapesense.com)