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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 met·al·loid /ˈmɛtḷˌɔɪd/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 met·al·loid /ˈmɛtḷˌɔɪd/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Met·al·loid n.  (a) Formerly, the metallic base of a fixed alkali, or alkaline earth; -- applied by Sir Humphrey 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: Webster's Revised Unabridged Dictionary (1913)

 Met·al·loid, a.
 1. Having the appearance of a metal.
 2. Chem. Having the properties of a nonmetal; nonmetallic; acid; negative.

From: WordNet (r) 2.0

      adj : of or being a nonmetallic element that has some of the
            properties of metal; "arsenic is a metalloid element"