jakku-rasseru-teria means "Jack Russell Terrier" in English.
It's a katakanization, a loan-word.

jakku-rasseru-teria is normally written with katakana, as ジャック・ラッセル・テリア.
jakku-rasseru-teria written with hiragana is じゃっく・らっせる・てりあ.
jakku-rasseru-teria does not have kanji.
Romaji ja kku ra sse ru te ri a
Meaning Jack Russell Terrier

Orthography Notes

  • ジャ is a compound kana representing a single syllable with multiple characters.
  • ック and ッセ contain a small tsu which makes the consonant of the syllable longer.