iron ocher

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• Ocher — O cher, Ochre O chre, n. [F. ocre, L. ochra, fr. Gr. ?, from (?) pale, pale yellow.] 1. (Min.) (a) A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), used as a pigment in making paints, etc. The name… …   The Collaborative International Dictionary of English

• ocher — [ō′kər] n. [ME ocra < L ochra < Gr ōchra < ōchros, pale, pale yellow] 1. an earthy clay colored by iron oxide, usually yellow or reddish brown: used as a pigment in paints 2. the color of ocher; esp., dark yellow ocherous adj …   English World dictionary

• ocher — ocherous, ochery, adj. /oh keuhr/, n., adj., v., ochered, ochering. n. 1. any of a class of natural earths, mixtures of hydrated oxide of iron with various earthy materials, ranging in color from pale yellow to orange and red, and used as… …   Universalium

• ocher — or ochre noun Etymology: Middle English oker, from Middle French & Latin; Middle French ocre, from Latin ochra, from Greek ōchra, from feminine of ōchros yellow Date: 14th century 1. an earthy usually red or yellow and often impure iron ore used… …   New Collegiate Dictionary

• iron oxide — noun : any of several natural or synthetic oxides or hydrated oxides of iron: as a. : anhydrous or hydrated ferric oxide varying in color from red, brown, or black to orange or yellow depending in part on the degree of hydration and the purity… …   Useful english dictionary

• iron minium — geležies(III) oksidas statusas T sritis chemija formulė Fe₂O₃ atitikmenys: angl. colcothar; ferric oxide; iron minium; iron sesquioxide; ironic oxide; iron(III) oxide; Prussian red; red iron oxide; red ocher, US; red ochre, GB; Spanish oxide rus …   Chemijos terminų aiškinamasis žodynas

• iron sesquioxide — geležies(III) oksidas statusas T sritis chemija formulė Fe₂O₃ atitikmenys: angl. colcothar; ferric oxide; iron minium; iron sesquioxide; ironic oxide; iron(III) oxide; Prussian red; red iron oxide; red ocher, US; red ochre, GB; Spanish oxide rus …   Chemijos terminų aiškinamasis žodynas

• iron(III) oxide — geležies(III) oksidas statusas T sritis chemija formulė Fe₂O₃ atitikmenys: angl. colcothar; ferric oxide; iron minium; iron sesquioxide; ironic oxide; iron(III) oxide; Prussian red; red iron oxide; red ocher, US; red ochre, GB; Spanish oxide rus …   Chemijos terminų aiškinamasis žodynas

• ocher — o•cher or o•chre [[t]ˈoʊ kər[/t]] n. 1) mir fia any of a class of natural earths, mixtures of hydrated oxide of iron with various earthy materials, ranging in color from pale yellow to orange and red, and used as pigments 2) fia the color of… …   From formal English to slang

• iron bacteria — noun : any of various bacteria of the order Chlamydobacteriales that act upon iron compounds and produce deposits of ocher and bog ore …   Useful english dictionary

• ocher — n. yellowish iron ore used as pigment in dyes and paints; medium yellow color with a brownish tint (also ochre) adj. of an earthy yellow color …   English contemporary dictionary