noun🔗Share尻, 臀部(usually in the plural) Each of the two large fleshy halves of the posterior part of the body between the base of the back, the perineum and the top of the legs."After sitting for hours in class, my buttocks started to feel sore. "授業で何時間も座っていた後、お尻が痛み始めた。bodyanatomyphysiologyorganparthumansexChat with AIVocabulary GamePractice Reading
noun🔗Share船尾The convexity of a ship behind, under the stern."The sleek lines of the racing yacht curved gracefully, especially in the buttocks, where the hull swelled before meeting the stern. "レーシングヨットの洗練されたラインは優雅にカーブを描き、特に船尾で船体が膨らみ、船尾と合流する前にその形を成していました。nauticalpartvehiclesailingChat with AIVocabulary GamePractice Reading