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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

/ ˈhaɪdrəʊ /

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-

2

combining_form

  1. indicating or denoting water, liquid, or fluid

    hydrodynamics

    hydrolysis

  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

hydro

3

/ ˈhaɪdrəʊ /

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

4

/ ˈhaɪdrəʊ /

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–

  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

In 2014, McManus was invited to sing with Rod Stewart at the Hydro in Glasgow to celebrate 50 years of the Lisbon Lions - the Celtic team that won the European Cup in Portugal in 1967.

From BBC

Last year he headlined the Clash at the Castle event at the OVO Hydro, with thousands of fans watching him fall short of the World title in the main event.

From BBC

His next return home will come in March, again at the OVO Hydro, for an episode of TV show Raw.

From BBC

The Ovo Hydro in Glasgow used to operate the same scheme but has now scrapped the £1 charge, saying it wanted to "streamline the process".

From BBC

The county also has an abundance of renewable hydro electricity, which accounts for 88% of its production capacity.

From BBC

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