circular moat; ring moat
Refers to a moat that encircles a settlement, castle, or archaeological site. Often used in descriptions of ancient Japanese fortifications.
A large circular moat remains at the Yoshinogari site.
環濠集落は弥生時代の特徴的な集落形態だ。
Moated settlements are a characteristic settlement form of the Yayoi period.
Compound of 環 (ring, circle) and 濠 (moat, trench). The term is primarily used in archaeological and historical contexts.