1

ur-

combining form
variants: or uro-

Definition of ur-

1 :urine
  • uric
2 :urinary tract
  • urology
3 :urinary and
  • urogenital
4 :urea
  • uracil

Origin and Etymology of ur-

New Latin, from Greek our-, ouro-, from ouron urine, from ourein to urinate — more at urine


2

ur-

combining form
variants: or uro-

Definition of ur-

:tail
  • uropod

Origin and Etymology of ur-

New Latin, from Greek our-, ouro-, from oura tail — more at ass


3

ur-

prefix, often capitalized \ ˈu̇r \

Definition of ur-

1 :original :primitive
  • ur-form
2 :original version of
  • urtext
3 :prototypical :arch-
  • ur-anticommunist

Origin and Etymology of ur-

German, from Old High German ir-, ur- thoroughly (perfective prefix) — more at abide


Ur

geographical name \ ˈər , ˈu̇r \

Definition of Ur

city of ancient Sumer
Note: The site of Ur is northwest of Basra in southern Iraq.

Seen and Heard

What made you want to look up ur-? 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

marked by intense feeling

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!