noun hedge·hog \ˈhej-ˌhg, -ˌhäg\

: a small, brown animal of Europe, Asia, and Africa that has sharp spines on its back and that can roll itself up into a ball

Full Definition of HEDGEHOG

a :  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 (as a porcupine)
a :  a military defensive obstacle (as of barbed wire)
b :  a well-fortified military stronghold

Illustration of HEDGEHOG

First Known Use of HEDGEHOG

15th century
May 27, 2015
riot act Hear it
a vigorous reprimand or warning
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears