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.

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

None of the nine people on the run were carrying water which also meant there was no way to cool down or rehydrate him when he collapsed.

From BBC • Mar. 2, 2024

It takes time to rehydrate and should be rinsed several times due to the possibility of salt contamination.

From Seattle Times • Feb. 14, 2024

At 25,000 feet he paused to give Pittman another injection of dexamethasone, and then everyone stopped for a long time at Camp Three to rest and rehydrate.

From "Into Thin Air" by Jon Krakauer

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