【上位】 the characteristic parts of a person's face: eyes and nose and mouth and chin; "an expression of pleasure crossed his features"; "his lineaments were very regular" 人の顔の特徴的な部分：目、鼻、口、および顎。
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【上位】 any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull あらかじめ軟骨を形成せずに膜質の組織内で発達する骨。鎖骨や頭蓋骨など。
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