hydrated

American

[hahy-drey-tid] / ˈhaɪ dreɪ tɪd /

adjective

chemically combined with water in its molecular form.
(of paper pulp) beaten until gelatinous for making into water-resistant paper.

hydrated British

/ ˈhaɪdreɪtɪd /

adjective

(of a compound) chemically bonded to water molecules

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of hydrated

First recorded in 1800–10; hydrate + -ed ²

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.

The park authority recommends that people carry their own treated water to stay safely hydrated.

From BBC • May 20, 2026

Traders chasing chip stock momentum may want to stay hydrated tomorrow morning.

From Barron's • May 7, 2026

But it doesn’t matter, just grab your best tight denim and thick leatherware and enter Club Bahia’s famed “Summer in Van Nuys Room,” for a night of pure heat, lunges and Nama-staying hydrated.

From Los Angeles Times • Apr. 1, 2026

As the water disappeared, hydrated ferrous sulfates were left behind.

From Science Daily • Mar. 10, 2026

We were hydrated yesterday, but we’ve also been sweating a great deal in this heat.

From "Dry" by Neal Shusterman and Jarrod Shusterman

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