noun
Refers to a small-format book designed to be easily carried in a pocket.
この辞書の袖珍版は持ち運びに便利だ。
The pocket edition of this dictionary is convenient to carry around.
袖珍 (shūchin) means 'pocket-sized' (literally 'sleeve treasure'), and 版 (ban) means 'edition'. The term is of Chinese origin and is used in Japanese to describe a compact book format.