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Definition of Metalloid

Babylon English

of metalloid (element which is both metallic and non-metallic); resembling both a metal and a nonmetal
element which is both metallic and nonmetallic; nonmetal
Metalloid Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(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.
  
(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.
  
(a.)
Having the properties of a nonmetal; nonmetallic; acid; negative.
  
(a.)
Having the appearance of a metal.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

metalloid
\met"al*loid\ (?), n. [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.
metalloid
\met"al*loid\, a.
1. having the appearance of a metal.
2. (chem.) having the properties of a nonmetal; nonmetallic; acid; negative.

WordNet 2.0

Adjective
1. of or being a nonmetallic element that has some of the properties of metal; "arsenic is a metalloid element"
(similar) nonmetallic, nonmetal
Metalloid Definition from Science & Technology Dictionaries & Glossaries
General Chemistry Glossary
Compare with metal and nonmetal .An element with both metallic and nonmetallic properties. Examples are silicon, arsenic, and germanium.
Metalloid Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
A metalloid is a chemical element that has properties in between those of metals and nonmetals. There is no standard definition of a metalloid, nor is there complete agreement as to which elements are appropriately classified as such. Despite this lack of specificity the term remains in use in chemistry literature.

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