珪藻[keisou] diatom
珪藻土[keisoudo] diatomaceous soil
二酸化珪素[nisankakeiso] silicon dioxide (SiO2)
珪素[keiso] silicon (Si)
珪酸[keisan] silicic acid

珪砂[keisha] silica sand
珪石[keiseki] silica
珪性肺塵症[keiseihaijinshou] pneumonoultramicroscopicsilicovolcanoconiosis
珪素鋼[keisokou] silicon steel
珪素樹脂[keisojushi] silicone resin

硅素[keiso] silicon (Si)
硅砂[keisha] silica sand
硅石[keiseki] silica

硅肺[keihai] silicosis
硅酸塩[keisanen] silicate

肺炎[haien] pneumonia
肺活量[haikatsuryou] lung capacity
肺肝[haikan] lungs and livers
肺結核[haikekkaku] pulmonary tuberculosis
肺臓[haizou] lungs

肺病[haibyou] lung disease
肺胞[haihou] pulmonary alveolus
肺葉[haiyou] pulmonary lobe
肺ガン[haigan] lung cancer