tetrapropylammonium
(Britain, Canada) simple past tense and past participle of counsel
Anything made so as to form alternate squares like those of a checkerboard.
(organic chemistry, especially in combination) The quaternary ammonium cation (CH₃CH₂CH₂)₄N⁺
A school where pre-school children play and learn at the same time.
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DiQt（ディクト）
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