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dubnium

(Encyclopedia)dubnium do͞obˈnēəm [key], artificially produced radioactive chemical element; symbol Db; at. no. 105; mass number of most stable isotope 268; m.p., b.p., and sp. gr. unknown; valence +5. Situated ...

oganesson

(Encyclopedia)oganesson ōˈgənĕsˌən [key], artificially produced radioactive chemical element; symbol Og; at. no. 118; mass number of most stable isotope 294; m.p., b.p., sp. gr., and valence unknown. Situated...

steel

(Encyclopedia)steel, alloy of iron, carbon, and small proportions of other elements. Iron contains impurities in the form of silicon, phosphorus, sulfur, and manganese; steelmaking involves the removal of these imp...

rutherfordium

(Encyclopedia)rutherfordium rŭᵺˌərfôrˈdēəm [key], artificially produced radioactive chemical element; symbol Rf; at. no. 104; mass number of most stable isotope 265; m.p., b.p., and sp. gr. unknown; valenc...

Corbière, Tristan

(Encyclopedia)Corbière, Tristan trēstäNˈ kôrbyĕrˈ [key], 1845–75, French poet, born Édouard Joachim Corbière. He spent most of his life on the coast of Brittany, living a Bohemian existence and suffering...

Al-Farghani

(Encyclopedia)Al-Farghani ălfrəgāˈnəs [key], d. after 861, Arab astronomer. Al-Farghani was born in Farghana, Transoxania (present-day Fergana, Uzbekistan), and died in Egypt. His most important work, written ...

Ficino, Marsilio

(Encyclopedia)Ficino, Marsilio märsēˈlyō fēchēˈnō [key], 1433–99, Italian philosopher. Under the patronage of Cosimo de' Medici, Ficino became the most influential exponent of Platonism in Italy in the 15...

interlude

(Encyclopedia)interlude, development in the late 15th cent. of the English medieval morality play. Played between the acts of a long play, the interlude, treating intellectual rather than moral topics, often contai...

joinery

(Encyclopedia)joinery, craft of assembling exposed woodwork in the interiors of buildings. Where carpentry refers to the rougher, simpler, and primarily structural elements of wood assembling, joinery has to do wit...

Mori Ogai

(Encyclopedia)Mori Ogai mōˈrē ōˈgäē [key], 1862–1922, Japanese army physician, medical researcher, literary critic, novelist, translator, scholar, and playwright, he is now primarily remembered for his fic...