1A reference book used to look up the meanings and usage of words — a somewhat formal term close in meaning to 辞書 (dictionary).
分からない漢字があったら、辞典で調べてください。
If there's a kanji you don't understand, please look it up in a dictionary.
この辞典には発音や例文も詳しく載っている。
This dictionary also includes detailed pronunciations and example sentences.
図書館で医学の専門辞典を借りた。
I borrowed a specialized medical dictionary from the library.