alumină — ALUMÍNĂ s.f. 1. Oxid de aluminiu. 2. (În forma alumin) Varietate de caolin, folosită în industria cauciucului. [var.: alumín s.n.] – Din fr. alumine. Trimis de ana zecheru, 13.09.2007. Sursa: DEX 98 ALUMÍNĂ s. v. oxid de aluminiu. Trimis de… … Dicționar Român
Alumina — Logo de Alumina Création 2003 … Wikipédia en Français
Alumina — bezeichnet: Königlich Kopenhagen, Manufaktur der Königlichen Porzellanfabrik in Dänemark Alumina Limited, australisches Unternehmen der Aluminiumproduktion Transparente Form von Aluminiumoxid, einer Oxidkeramik … Deutsch Wikipedia
alumina — s. f. Óxido de alumínio (Al2O3) que diversamente colorido constitui algumas pedras preciosas (safiras, rubis, etc.), e que é empregado no fabrico de porcelanas e faianças. (A alumina hidratada existe na natureza [bauxita].) … Dicionário da Língua Portuguesa
Alumina — A*lu mi*na, n. [L. alumen, aluminis. See {Alum}.] (Chem.) One of the earths, consisting of two parts of aluminium and three of oxygen, {Al2O3}. [1913 Webster] Note: It is the oxide of the metal aluminium, the base of aluminous salts, a… … The Collaborative International Dictionary of English
Alumīna — (Chem.), Thonerde … Pierer's Universal-Lexikon
Alumĭna — (lat.), Tonerde; A. hydrata, Tonerdehydrat … Meyers Großes Konversations-Lexikon
alúmina — (no contable) sustantivo femenino 1. Área: química Óxido de aluminio que, forma feldespatos o arcillas, combinado con ciertos óxidos, y, cristalizado, el rubí o el corindón … Diccionario Salamanca de la Lengua Española
alumina — [ə lo͞o′mə nə] n. [ModL < L alumen (gen. aluminis), ALUM1] an oxide of aluminum, Al2O3, present in bauxite and clay and found as different forms of corundum, including emery, sapphires, and rubies … English World dictionary
alumina — /euh looh meuh neuh/, n. the natural or synthetic oxide of aluminum, Al2O3, occurring in nature in a pure crystal form as corundum. Also called aluminum oxide. [1780 90; < L alumin , s. of alumen ALUM1 + A4] * * * ▪ chemical compound… … Universalium