Translation

The Japanese word for "Hedgehog" is hari-nezumi ハリネズミ.

Romaji ha ri ne zu mi
Hiragana
Katakana
Kanji
Meaning Needle Rat
School Level 小6

Loan-word

The word "Hedgehog" katakanized would be hejjihoggu ヘッジホッグ.
Romaji he jji ho ggu
Katakana
Hiragana
Meaning Hedge Hog

Trivia

  • "Sonic The Hedgehog" in Japanese is Sonikku Za Hejjihoggu ソニック・ザ・ヘッジホッグ.

Synonyms

Scientific name: Erinaceinae.

Further Reading

Wikipedia: Hedgehog (ハリネズミ)
Sea Hedgehog, Wild Hog.