speculum metal

any of several bronze alloys with a high tin content, often containing other materials, as silver, brass, lead, zinc, or arsenic, used for making mirrors and reflectors. Also called speculum, speculum alloy.
[1790-1800]

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Universalium. 2010.

Look at other dictionaries:

  • Speculum metal — Speculum Spec u*lum, n.; pl. L. {Specula}, E. {Speculum}. [L., fr. specere to look, behold. See {Spy}.] 1. A mirror, or looking glass; especially, a metal mirror, as in Greek and Roman arch[ae]ology. [1913 Webster] 2. A reflector of polished… …   The Collaborative International Dictionary of English

  • Speculum metal — is a very hard white alloy of four parts copper to one part tin, or according to [http://www.astronomybuff.com/leviathan of parsonstown/ other sources] , three parts copper to one part tin; some compositions contained 1–2% of arsenic. Composition …   Wikipedia

  • speculum metal — n. an alloy of copper and tin that will take a mirrorlike polish, used for making mirrors …   English World dictionary

  • speculum metal — veidrodinis metalas statusas T sritis fizika atitikmenys: angl. speculum metal vok. Spiegelmetall, n rus. зеркальный металл, m pranc. métal à miroir, m …   Fizikos terminų žodynas

  • Speculum metal — Spiegelmetall ist eine sehr harte, gut polierbare, weißliche Bronzelegierung aus Kupfer, Zinn und Zusätzen anderer Metalle, die die Härte und Polierbarkeit verbessern. Legierungen Einige für Spiegel verwendete Legierungen sind: einfache… …   Deutsch Wikipedia

  • speculum metal — noun an alloy of copper and tin used to make mirrors, especially formerly for telescopes …   English new terms dictionary

  • speculum metal — /ˈspɛkjələm mɛtl/ (say spekyuhluhm metl) noun any of several copper and tin alloys used for mirrors and reflectors …   Australian English dictionary

  • speculum metal — noun : an alloy capable of taking a brilliant polish, used for making reflectors, and being commonly a hard brittle alloy of copper and tin in various ratios (as tin 33 to copper 67) with often a little arsenic, antimony, or zinc added to improve …   Useful english dictionary

  • Speculum — Spec u*lum, n.; pl. L. {Specula}, E. {Speculum}. [L., fr. specere to look, behold. See {Spy}.] 1. A mirror, or looking glass; especially, a metal mirror, as in Greek and Roman arch[ae]ology. [1913 Webster] 2. A reflector of polished metal,… …   The Collaborative International Dictionary of English

  • Speculum — The term speculum may refer to:* Speculum (medical), a medical tool used for examining body cavities. * Speculum (band), a San Diego California grindcore/death metal band. * Speculum metal, an alloy containing copper and tin used for making all… …   Wikipedia

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