hydro

1 of 2

noun (1)

hy·​dro ˈhī-(ˌ)drō How to pronounce hydro (audio)
plural hydros
British
: an establishment offering hydropathic treatment (as for weight loss) : health spa

hydro

2 of 2

noun (2)

often attributive
: hydroelectric power

Examples of hydro in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Riding the hydro wave To leverage hydropower as fuel for EV growth, the U.S. needs to maintain existing hydropower plants while also building new ones, according to Purdie. Building and maintaining utility-scale hydro is cost-heavy and resource-intensive. Matt Alderon, USA Today, 20 May 2025 Finally, the Splash Kit is the healer of the group, as the hydro cannon that comes in this kit cools off Hiss for a debuff, puts out damaging fires, and cleanses teammates of debuffs. Jason Fanelli, Rolling Stone, 14 May 2025 Battery storage capacity now exceeds pumped hydro capacity, totaling more than 26 gigawatts. Umair Irfan, Wired News, 26 Apr. 2025 In today’s energy system, the most flexible generation sources are natural gas and hydro. Erin Baker, The Conversation, 14 Apr. 2025 See All Example Sentences for hydro

Word History

Etymology

Noun (1)

short for hydropathic establishment

Noun (2)

short for hydropower

First Known Use

Noun (1)

1882, in the meaning defined above

Noun (2)

1916, in the meaning defined above

Time Traveler
The first known use of hydro was in 1882

Cite this Entry

“Hydro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydro. Accessed 28 May. 2025.

Kids Definition

hydro

noun
hy·​dro
ˈhī-drō
: hydroelectric power

Medical Definition

hydro

noun
hy·​dro ˈhī-(ˌ)drō How to pronounce hydro (audio)
plural hydros
British
: a hydropathic facility : spa
also : a hotel catering to people using such a facility
Last Updated: - Updated example sentences
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