擁よう壁へき

noun

retaining wall; breast wall; revetment

Engineering term for a wall that holds back earth or water. 擁壁 is the most common Japanese term; 'breast wall' and 'revetment' are more specific English equivalents used in civil engineering contexts.

• この擁よう壁へきは土ど砂しゃ崩くずれを防ふせぐために造つくられた。