Definition of uropygium
: the fleshy and bony prominence at the posterior extremity of a bird's body that supports the tail feathers
Keep scrolling for more
Test Your Vocabulary
Who Knew?
-
- What is a ruelle?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share uropygium
Time Traveler for uropygium
The first known use of uropygium was in 1771
See more words from the same year