uncontaminated
Not contaminated; unpolluted.
An electromagnetic machine in which several magnetic poles exist.
(organic chemistry) Any of several isomeric tricyclic aromatic heterocycles derived from anthracene by replacement of two CH groups by nitrogen atoms
(historical) In Holland, and, until the 19th century, also in Cape Colony, a council to assist a local magistrate in the government of rural districts. / (historical) A member of such a council.
その科学者は在来の微生物を研究するために、汚染されていない湧水から試料を採取した。
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DiQt
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