metalloid
plural of brillo pad
(chemistry) An element, such as silicon or germanium, intermediate in properties between that of a metal and a nonmetal; especially one that exhibits the external characteristics of a metal, but behaves chemically more as a nonmetal.
A disease affecting the leaves of the coffee plant, caused by the fungus Hemileia vastatrix.
(obsolete) saline
ケイ素は準金属で、その半導体特性により現代の電子工学で重要な役割を果たしている。
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