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Fehling's solution

(Encyclopedia)Fehling's solution fāˈlĭngz [key], deep-blue, alkaline solution used to test for the presence of aldehydes (e.g., formaldehyde, HCHO) or other compounds that contain the aldehyde functional group, ...

Nicholas I, Saint, pope

(Encyclopedia)Nicholas I, Saint, c.825–867, pope (858–67), a Roman; successor of Benedict III. He was a vigorous and politically active pope who arbitrated both temporal and religious disputes. His decisions of...

Orsini

(Encyclopedia)Orsini ōrsēˈnē [key], powerful Roman family that included three popes and numerous other churchmen, soldiers and statesmen. The eponymous ancestor was one Ursus. Giacinto Orsini, who became Pope C...

Robert of Geneva

(Encyclopedia)Robert of Geneva, d. 1394, Genevan churchman, antipope (1378–94; see Schism, Great) with the name Clement VII. He was archbishop of Cambrai (1368) and was created (1371) a cardinal. He was subsequen...

Innocent II

(Encyclopedia)Innocent II, d. 1143, pope (1130–43), a Roman named Gregorio Papareschi; successor of Honorius II. He was created cardinal by Paschal II. On the death of Honorius II, a faction of the cardinals elec...

Nono, Luigi

(Encyclopedia)Nono, Luigi lo͞oēˈjē nôˈnō [key], 1924–90, Italian composer, b. Venice. Nono studied with Hermann Scherchen and Bruno Maderna. He adopted the twelve-tone method of composition (see serial mus...

Tait, Archibald Campbell

(Encyclopedia)Tait, Archibald Campbell, 1811–82, British churchman, archbishop of Canterbury, b. Edinburgh. He grew up a Presbyterian, but he early decided to enter the ministry of the Church of England. In 1834 ...

Margaret Maultasch

(Encyclopedia)Margaret Maultasch moulˈtäsh [key] [Ger.,=pocket mouth], 1318–69, countess of Tyrol, called the Ugly Duchess, probably because of her unattractive appearance, especially her mouth. When Margaret's...

Pisa, Council of

(Encyclopedia)Pisa, Council of, 1409, unrecognized council of the Roman Catholic Church. It was summoned to end the Great Schism (see Schism, Great) by members of the colleges of cardinals of the two rivals, Gregor...