noun
single-seat constituency system
A political system where each electoral district elects one representative. Often contrasted with 大選挙区制 (multi-seat constituency system).
日本の衆議院選挙では、小選挙区制と比例代表制が併用されている。
In Japan's House of Representatives elections, the single-seat constituency system and proportional representation are used together.
Compound of 小 (small), 選挙区 (electoral district), and 制 (system). The term directly describes a system with small, single-member districts.