METALLOID

metalloid

(adjective) of or being a nonmetallic element that has some of the properties of metal; “arsenic is a metalloid element”

Source: WordNet® 3.1

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Etymology

Noun

metalloid (plural metalloids)

(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.

(chemistry, obsolete) The metallic base of a fixed alkali, or alkaline earth; applied to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.

Adjective

metalloid (comparative more metalloid, superlative most metalloid)

(not comparable) Of or relating to the metalloids.

(informal) Characteristic of the metal music genre.

Source: Wiktionary

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Met"al*loid, n. Etym: [L. metallum metal + -oid: cf. F. métalloïde.] (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.

Met"al*loid, a.

1. Having the appearance of a metal.

2. (Chem.)

Definition: Having the properties of a nonmetal; nonmetallic; acid; negative.

Source: Webster’s Unabridged Dictionary 1913 Edition

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