Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

hydr-

combining form

Definition of hydr-

  1. 1 a :  water <hydrous> <hydroelectric> b :  liquid <hydrokinetic>

  2. 2 :  hydrogen :  containing or combined with hydrogen <hydrocarbon> <hydroxyl>

  3. 3 :  hydroid <hydromedusa>



Variants of hydr-

or

hydro-

Origin and Etymology of hydr-

Latin hydr-, hydro-, from Greek, from hydōr — more at water


Learn More about hydr-

  1. Medical Dictionary: Definition of hydr-


Seen and Heard

What made you want to look up hydr-? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to lessen in amount, effect, or force

Get Word of the Day daily email!