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English pronunciation of “hydro-”

hydro-

 
uk
/haɪ.drəʊ-//-drə-/
How to pronounce hydro- in British English
 
us
/-droʊ-/
How to pronounce hydro- in American English
What is the definition of hydro-? »
(Pronunciation of hydro- from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

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