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hydro-

1
  1. a combining form meaning “water,” used in the formation of compound words:

    hydroplane; hydrogen.



hydro-

2
  1. a combining form representing hydrogen in compound words, denoting especially a combination of hydrogen with some negative element or radical:

    hydrobromic.

hydro

3

[ hahy-droh ]

noun

, plural hy·dros
  1. Informal. hydroelectric power.
  2. Informal. hydroplane.
  3. British.
    1. a bathhouse, hotel, or resort catering to people taking mineral-water health cures; spa.
    2. an establishment furnishing hydrotherapy.

adjective

  1. Informal. of, relating to, or furnishing water, water power, or hydroelectricity:

    funds for new hydro projects.

hydro-

1

combining_form

  1. indicating or denoting water, liquid, or fluid

    hydrolysis

    hydrodynamics

  2. indicating the presence of hydrogen in a chemical compound

    hydrochloric acid

  3. indicating a hydroid

    hydrozoan



hydro

2

/ ˈhaɪdrəʊ /

adjective

  1. short for hydroelectric

noun

  1. a Canadian name for electricity when it is supplied to a residence, business, institution, etc

hydro

3

/ ˈhaɪdrəʊ /

noun

  1. (esp formerly) a hotel or resort, often near a spa, offering facilities for hydropathic treatment

Hydro

4

/ ˈhaɪdrəʊ /

noun

  1. (esp in Canada) a hydroelectric power company or board

hydro–

  1. A prefix that means: “water” (as in hydroelectric ) or “hydrogen,” (as in hydrochloride ).


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Word History and Origins

Origin of hydro-1

< Greek, combining form of hýdōr water

Origin of hydro-2

1880–85; by shortening of compounds with hydro- 1 ( -o ); hydro ( def 4 ) hydro- 1 analyzed as an adj.

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Word History and Origins

Origin of hydro-1

from Greek hudōr water

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Example Sentences

Long-range, high-voltage transmission lines also enable more development of solar, wind, hydro, and geothermal plants in the regions blessed with the weather, geology, or waterways to supply them.

It’s starting from a low base of installed capacity, however, far behind coal, gas, hydro, nuclear—even wind, which has been cheap for longer.

A Bitcoin analyst and self-professed “hippie miner,” Jason Deane uses computers that run exclusively on hydro power—though this eco-friendly setup is likely the exception, not the rule.

Renewable energy, particularly wind and solar, will account for less than 10 percent, with the remainder, about 18 percent of the power mix, coming primarily from hydro-electric power.

The field is formed by movements of liquified iron and nickel within the planet’s core, a phenomenon called magneto-hydro-dynamics that geophysicists are still working to fully understand.

Canada has abundant hydro potential — and in fact Manitoba and Quebec have abundant hydro for sale right now.

Here, however, it's worth noting that heavy use of emissions-free hydro power correlates strongly with lower power rates.

Alaska Electric Light and Power got a 24 percent residential rate hike to deal with inflation and to build a new hydro project.

A large number of these mills are actuated hydraulically or hydro-electrically.

The hydro-electric industry has been largely nationalized by those who are foremost in it.

Retinol, ret′i-nol, n. a hydro-carbon oil used in printers' ink.

Next to my flight in the hydro-aeroplane this was the greatest experience of my life.

On this supposition the positive impulse is to be regarded as hydro-mechanical.

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