Hydro Definition

hīdrō
hydros
noun
A place, such as a spa, where people can receive hydropathic treatments.
Webster's New World
Hydroelectric power.
Webster's New World
A hydroelectric power plant.
Webster's New World
(Canada, uncountable) Electrical power supply; specifically : electrical power provided by a utility (as a publicly-owned one)
I won't have lights until my house gets the hydro turned on.
Wiktionary

(UK, countable, dated) A spa.

Wiktionary
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adjective
Hydroelectric.
Webster's New World
Wiktionary
prefix
Wiktionary
Liquid.
Hydrodynamics.
American Heritage
Hydrogen.
Hydrochloride.
American Heritage

(zoology) Hydrozoa.

Wiktionary
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Water.
Hydrostatics, hydrometer.
Webster's New World
Containing hydrogen.
Hydrocyanic acid.
Webster's New World

Other Word Forms of Hydro

Noun

Singular:
hydro
Plural:
hydros

Origin of Hydro

  • Greek hudro-, hudr- from hudōr wed-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek ὑδρο- (hydro-), from ὕδωρ (hydor, “water")

    From Wiktionary

  • From Ancient Greek ὕδωρ (hudōr, “water”).

    From Wiktionary

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