noun
roundabout; traffic circle; rotary
Refers to a circular intersection where traffic moves around a central island. Common in Japanese road contexts.
この先にロータリーがあるので、注意して運転してください。
There's a roundabout ahead, so please drive carefully.
noun-modifying (irregular)
rotary; rotating
Prenominal use describing something that rotates, such as a rotary engine or rotary club. Often part of compound terms.
ロータリーエンジンは独特の構造を持っている。
The rotary engine has a unique structure.