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

Provide point protection for Balch Camp PG&E hydro-electric and residential facilities, two powerhouses, Balch communication reflector, penstock and valve houses, and associated power distribution lines. —Ca Wildfire Bot, Sacbee.com, 10 Sep. 2025

Apart from gas, which provides 55% of First Gen’s capacity, and geothermal, the Philippine company's energy portfolio includes hydro, solar and wind. —Ian Sayson, Forbes.com, 28 Aug. 2025

Here there are two separate vanities with sinks, a hydro-soaking tub, separate shower stall, and a separate room for the commode. —James Alexander, Hartford Courant, 17 Aug. 2025

Failing hydro power in Zambia last year led to 21-hour blackouts. —Mark Gongloff, Mercury News, 13 Aug. 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