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

The colorful Block Party Trooper 2Vi Mips helmet includes variations of Sweet Protection’s logo over the years and was created via hydro-dipping, a process that ensures that no two designs are the same. —Jenny Wiegand, Outside, 23 Nov. 2025

The roughly 51-mile channel continues to serve as a hydro-highway shuttling stormwater runoff from the mountains to the sea. —Emma Bowman, NPR, 17 Nov. 2025

Once fully operational, the hybrid solar-hydro power plant is projected to generate roughly 61 GWh of renewable electricity each year. —Bojan Stojkovski, Interesting Engineering, 15 Nov. 2025

The need for water security Bangladesh’s hydro challenges are multifaceted. —Pintu Kumar Mahla, The Conversation, 3 Nov. 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