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Meaning Of Metalloid
n.
Formerly, the metallic base of a fixed alkali, or
alkaline earth; -- applied by Sir H. Davy to sodium, potassium, and
some other metallic substances whose metallic character was supposed to
be not well defined.
n.
Now, one of several elementary substances which in the
free state are unlike metals, and whose compounds possess or produce
acid, rather than basic, properties; a nonmetal; as, boron, carbon,
phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are
metalloids.
a.
Having the appearance of a metal.
a.
Having the properties of a nonmetal; nonmetallic; acid;
negative.