hara-kiri/ˌhærəˈkɪrɪ; `hɑrə`kɪrɪ/ n[U]ritual suicide using a sword to cut open one's stomach, formerly practised by Japanese Samurai to avoid dishonour when they believed they had failed in their duty 切腹, 剖腹（旧时日本武士在自知任务失败时为免受屈辱的自杀手段）.
牛津英汉双解词典