Colcothar — Col co*thar (k[o^]l k[ o]*th[ e]r), n. [NL. colcothar vitrioli, fr. Ar. qolqo[.t]ar.] (Chem.) Polishing rouge; a reddish brown oxide of iron, used in polishing glass, and also as a pigment; called also {crocus Martis}. [1913 Webster] … The Collaborative International Dictionary of English
Colcothar — Colcothar, s. Eisenrot … Lexikon der gesamten Technik
Colcothar — Colcothar, der Rückstand des Eisenvitriols nach seiner Destillation zu Schwefelsäure … Herders Conversations-Lexikon
colcothar — [käl′kō thər, käl′kəthər] n. [Sp colcotar < Ar qulqutār < Gr chalkanthos, solution of blue vitriol (copper sulfate) < chalkos, copper + anthos, flower] a brownish red oxide of iron, obtained by heating ferrous sulfate: it is used as a… … English World dictionary
colcothar — ⇒COLCOT(H)AR, (COLCOTAR, COLCOTHAR)subst. masc. CHIM. Oxyde ferrique de couleur rouge obtenu artificiellement par calcination du sulfate de fer dont il constitue le résidu, utilisé pour le polissage du verre et des métaux, ainsi que dans la… … Encyclopédie Universelle
colcothar — Crocus Cro cus (kr[=o] k[u^]s), n. [L., saffron, fr. Gr. kro kos; cf. Heb. kark[=o]m, Ar. kurkum, Skr. ku[.n]kuma.] 1. (Bot.) A genus of iridaceous plants, with pretty blossoms rising separately from the bulb or corm. {Crocus vernus} is one of… … The Collaborative International Dictionary of English
colcothar — 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
Colcothar vitrioli — Colcothār vitriōli, s.v.w. Caput mortuum … Kleines Konversations-Lexikon
colcothar — /kol keuh theuhr/, n. Chem. the brownish red oxide of iron produced by heating ferrous sulfate: used chiefly as a pigment in paints and theatrical rouge, and as a polishing agent. Also called jewelers rouge. [1595 1605; < ML < OSp colcotar, SpAr… … Universalium
colcothar — col·co·thar … English syllables
