英英辞典 - English Dictionary | CUERBO - クエルボ英語辞書

acetabulum

noun

  1. the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint

    大腿骨の頭部がその中にぴったりと入り込む球窩関節を形成する寛骨にあるカップ形のくぼみ

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