Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Rehydrate
Medically reviewed by Min Clinic Staff | Updated: January 2026
Rehydrate: To restore lost water to the body tissues and fluids. Prompt rehydration is imperative whenever dehydration occurs, whether from diarrhea, exposure, lack of drinking water, or medication use. Rehydration can occur orally or via IV administration of fluids.