noun
katakana dictionary; loanword dictionary
A reference work that lists and explains words written in katakana, especially loanwords from other languages.
カタカナ語辞典を引いて、この外来語の意味を調べた。
I looked up the meaning of this loanword in a katakana dictionary.
Compound of カタカナ (katakana) + 語 (word, language) + 辞典 (dictionary). The term is transparent and refers to a dictionary of katakana words.