animal charcoal
A fine charcoal prepared by calcining bones in a closed vessel; used as a filtering agent in sugar refining, and as an adsorbent and disinfectant.
plural of flush toilet
A book in which laws are codified. / A textbook on some aspect of law.
plural of spynace
化学者は精製工程で砂糖シロップの脱色に骨炭を用いた。
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