Hypertext Webster Gateway: "metalloid"
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) 1.7 (wn)
metalloid
adj : of or being a nonmetallic element that has some of the
properties of metal; "arsenic is a metalloid element"
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