hydro

1 of 2

noun (1)

hy·​dro ˈhī-(ˌ)drō 

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

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

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

Rhymes for hydro

• acknow
• aglow
• ago
• airglow
• aloe
• altho
• although
• ammo
• backflow
• backhoe
• banjo
• barbeau

Kids Definition

hydro

noun

hy·​dro

ˈhī-drō

: hydroelectric power

Medical Definition

hydro

noun

hy·​dro ˈhī-(ˌ)drō 

plural hydros

British

: a hydropathic facility : spa

also : a hotel catering to people using such a facility