Rooker
(inorganic chemistry) Any anion containing ten borate groups; any salt containing such an anion
A surname.
plural of Shearon
The increase in rate of a chemical reaction caused by the presence of a catalyst. / An amount of catalyst, expressed as the increase of the rate of its reaction.
その姓の人物は土曜日に地域センターを訪れ、無料の木工教室を教えた。
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