er·i·na·ceous – er-uh-ney-shuhs
Of, pertaining to, or resembling a hedgehog,
*see Martin Freeman
Comparative – more erinaceous, superlative – most erinaceous
From the Latin ērināceus
A group of hedgehogs is known as an ‘array’.
The Sea Urchin was names after the hedgehog, as originally the hedgehog was referred to as ‘urchins’
One of the lesser known Brothers Grimm Fairy Tales is called ‘Hans my Hedgehog’ the subject matter of which revolves around a boy who is half hedgehog. Really.