Metalloid

Metalloid
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 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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • metalloid — [met′ə loid΄] n. 1. NONMETAL 2. an element having some of, but not all, the properties of metals, as arsenic or silicon adj. 1. like a metal in appearance 2. of, or having the nature of, a metalloid …   English World dictionary

  • Metalloid — Met al*loid, a. 1. Having the appearance of a metal. [1913 Webster] 2. (Chem.) Having the properties of a nonmetal; nonmetallic; acid; negative. [1913 Webster] …   The Collaborative International Dictionary of English

  • Metalloid —   13 14 15 16 17   2  B Boron …   Wikipedia

  • metalloid — UK [ˈmetəlɔɪd] / US noun [countable] Word forms metalloid : singular metalloid plural metalloids chemistry a chemical element such as silicon that is not a metal but that has some of the qualities that a metal has Derived word: metalloid UK / US… …   English dictionary

  • metalloid — Resembling a metal in at least one amphoteric form; e.g., silicon and germanium as semiconductors. [metal + G. eidos, resemblance] * * * met·al·loid met əl .ȯid n an element (as boron, silicon, or arsenic) intermediate in properties between the… …   Medical dictionary

  • Metalloid — metaloidas statusas T sritis fizika atitikmenys: angl. metalloid vok. Metalloid, n rus. металлоид, m pranc. métalloïde, m …   Fizikos terminų žodynas

  • metalloid — metaloidas statusas T sritis fizika atitikmenys: angl. metalloid vok. Metalloid, n rus. металлоид, m pranc. métalloïde, m …   Fizikos terminų žodynas

  • metalloid — I. noun Date: 1813 1. an element intermediate in properties between the typical metals and nonmetals 2. a nonmetal that can combine with a metal to form an alloy II. adjective also metalloidal Date: 1836 1. resembling a metal 2. of, relating to,… …   New Collegiate Dictionary

  • metalloid — /met l oyd /, n. 1. a nonmetal that in combination with a metal forms an alloy. 2. an element that has both metallic and nonmetallic properties, as arsenic, silicon, or boron. adj. 3. of or pertaining to a metalloid. 4. resembling both a metal… …   Universalium

  • metalloid — met·al·loid || metÉ™lɔɪd n. element which is both metallic and nonmetallic; nonmetal adj. of metalloid (element which is both metallic and non metallic); resembling both a metal and a nonmetal …   English contemporary dictionary

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