3 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Metalloid \Met"al*loid\, a.
1. Having the appearance of a metal.
2. (Chem.) Having the properties of a nonmetal; nonmetallic;
acid; negative.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Metalloid \Met"al*loid\, n. [L. metallum metal + -oid: cf F.
m['e]tallo["i]de.]
a 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.
b 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.
From WordNet r 1.6 [wn]:
metalloid
adj : of or being a nonmetallic element that has some of the
properties of metal; "arsenic is a metalloid element"
more about metalloid
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