rime dictionary; rhyme dictionary
A type of historical Chinese dictionary that organizes characters by tone and rhyme (final), used for poetry and phonological study.
『切韻』は代表的な韻書の一つです。
The Qieyun is one of the representative rime dictionaries.
From Chinese 韻書 (yùnshū), literally 'rhyme book'. The term entered Japanese as a Sino-Japanese word (kango).