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Villeurbanne

(Encyclopedia)Villeurbanne vēlürbänˈ [key], city (1990 pop. 119,848), Rhône dept., E central France, a suburb E of Lyons. It is a major industrial center; metals, machines, textiles, and chemicals are produced...

transition elements

(Encyclopedia)transition elements or transition metals, in chemistry, group of elements characterized by the filling of an inner d electron orbital as atomic number increases. This includes the elements from titani...

cupric sulfate

(Encyclopedia)cupric sulfate ko͞oˈprĭk sŭlˈfāt, kyo͞oˈ– [key] or copper (II) sulfate, chemical compound, CuSO4, taking the form of white rhombohedral crystals or amorphous powder. It decomposes at 650℃ ...

alkaline earths

(Encyclopedia)alkaline earths ălˈkəlīn, –lĭn [key], oxides of the alkaline-earth metals, especially of calcium, strontium, and barium. They are not readily soluble in water and form solutions less basic than...

oxyacetylene torch

(Encyclopedia)oxyacetylene torch ŏkˌsēəsĕtˈəlēn [key], tool that mixes and burns oxygen and acetylene to produce an extremely hot flame. This torch can be used for cutting steel and for welding iron and var...

treasure-trove

(Encyclopedia)treasure-trove, in English law, buried or concealed money or precious metals without any ascertainable owner. Such property belongs to the crown. The present practice in Great Britain is for the crown...

Zawiercie

(Encyclopedia)Zawiercie zävyĕrˈchĕ [key], city (1992 est. pop. 56,000), Śląskie prov., S Poland, on the Warta River. Its industries produce metals, glass, machinery, chemicals, and apparel. Lignite and iron o...

Siemianowice Śląskie

(Encyclopedia)Siemianowice Śląskie shĕmyänôvēˈtsĕ shläNˈskyĕ [key], city (1991 est. pop. 80,600), Śląskie prov., S Poland. A center of the Katowice mining and industrial region, it has ironworks and st...

Akershus

(Encyclopedia)Akershus äˈkərs-ho͞osˌ [key], county, 1,895 sq mi (4,908 sq km), SE Norway, bordering on the Oslofjord in the south and on Sweden in the east. The capital is Oslo. Th...

Issy-les-Moulineaux

(Encyclopedia)Issy-les-Moulineaux ēsēˈ-lā-mo͞olēnōˈ [key], suburb SW of Paris, Hauts-de-Seine dept., N central France. It i...