rehydrate

American

[ree-hahy-dreyt] / riˈhaɪ dreɪt /

verb (used with object)

rehydrated, rehydrating

to restore moisture or fluid to (something dehydrated).

Other Word Forms

rehydration noun

Etymology

Origin of rehydrate

1920–25; re- + hydrate, on the model of dehydrate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“One of the things that I do in this recipe is rehydrate milk powder. That sort of simulates khoa without all the effort, which I feel makes a huge difference,” Selvaraju adds.

From Salon • Oct. 21, 2025

You freeze-dry it and you rehydrate it on the battlefield with drinking water, and that’s it.

From Slate • Sep. 1, 2025

Beavers can also help restore burned areas: Their dams trap ash and debris, and their wetlands help rehydrate landscapes, supporting the growth of grasses and shrubs, Lundquist said.

From Los Angeles Times • Mar. 26, 2024

"A donkey will be able to go for perhaps 24 hours without drinking and can rehydrate very quickly without any problems."

From BBC • Feb. 15, 2024

First I fill my bottle with the pool water, treat it, and when enough time has passed, begin to rehydrate my body.

From "The Hunger Games" by Suzanne Collins

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023