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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

hydros 
  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

/ ˈɪəʊ /

noun

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

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hydro

2

/ ˈɪəʊ /

adjective

  1. short for hydroelectric

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

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

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Hydro

3

/ ˈɪəʊ /

noun

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

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hydro-

4

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

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

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Word History and Origins

Origin of 1

< Greek, combining form of ýō water

Origin of 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 1

from Greek ܻō water
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Example Sentences

Examples have not been reviewed.

Spinrad visited Southern California in late May and was taken aback by the number of people raising concern over the agency’s ability to continue predicting atmospheric river events, with all of their implications on public safety, reservoir operations and hydro power.

From

She says a performance at Glasgow's OVO Hydro last year was particularly memorable.

From

Fan Chloe Banning told BBC Scotland News the majority of fans at the Hydro were sympathetic when Murs walked off, though a minority were angry over the cancellation.

From

The former X Factor contestant was only six songs into his set at the OVO Hydro venue when he had to call it quits, leaving fans disappointed.

From

Last year he was unable to support Take That at the OVO Hydro in Glasgow after his flight was cancelled.

From

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When To Use

doeshydro- mean?

Hydro- is a combining form used like a prefix that has two distinct senses.The first of these senses is “water,” and this form of hydro- is often used in a variety of scientific and technical terms. Hydro- comes from Greek ýō, meaning “water.”The second of these senses is “hydrogen,” and this form of hydro- is occasionally used in a variety of scientific terms, especially in chemistry. Hydrogen, the lightest of the elements, combines with oxygen to form water. The word hydrogen comes from French DzèԱ. The suffix -gen, or its equivalent in French, means "that which produces." Hydrogen literally translates to "that which produces water." are variants of hydro-?When combined with words or word elements that begin with a vowel, hydro- becomes hydr-, as in hydrant. Want to know more? Read our Words That Use article on hydr-.

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