hydr-

combining form
variants: or

hydro-

Definition of hydr-

  1. 1a :  water hydrous hydroelectricb :  liquid hydrokinetic

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

  3. 3 :  hydroid hydromedusa

Origin and Etymology of hydr-

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


Medical Dictionary

hydr-

combining form
variants: or

hydro-

Medical Definition of hydr-

  1. 1:  water hydrotherapy

  2. 2a:  liquid :  fluid hydrokineticsb:  fluid accumulation hydrocephalus hydronephrosis


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).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to plunder or ravage

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!