Definition of hedgehog
1a
: any of a subfamily (Erinaceinae) of Eurasian and African nocturnal insectivores that have both hair and spines which they present outwardly by rolling themselves up when threatened
b
: any of several spiny mammals (such as a porcupine)
2a
: a military defensive obstacle (as of barbed wire)
b
: a well-fortified military stronghold
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
February 2021 Words of the Day Quiz
-
- Which is a synonym of perdure?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share hedgehog
Time Traveler for hedgehog
The first known use of hedgehog was in the 15th century
See more words from the same century