Translation

The Japanese word for "Armadillo" is arumajiro アルマジロ, a katakanization.
Another word for "Armadillo" is yoroi-nezumi ヨロイネズミ.

Romaji a ru ma ji ro
Katakanaアルマジロ
Hiraganaあるまじろ
Romaji yo ro i ne zu mi
Hiraganaよろいねずみ
Katakanaヨロイネズミ
Kanji 鎧 鼠
Meaning Armor Rat
School Level ✕ ✕

Further Reading

Wikipedia: Armadillo (アルマジロ)