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Ercole de' Roberti

(Encyclopedia)Ercole de' Roberti ārkôˈlā dā rōbĕrˈtē [key], 1456?–1496, Italian painter of the Ferrarese school. He probably began his career by assisting Francesco Cossa in the decoration of the Schifan...

gastropod

(Encyclopedia)CE5 Internal anatomy of a snail, Helix aspersa, representative mollusk of the class Gastropoda gastropod, member of the class Gastropoda, the largest and most successful class of mollusks (phylum ...

epistemology

(Encyclopedia)epistemology ĭpĭsˌtəmŏlˈəjē [key] [Gr.,=knowledge or science], the branch of philosophy that is directed toward theories of the sources, nature, and limits of knowledge. Since the 17th cent. e...

Töpffer, Rodolphe

(Encyclopedia)Töpffer, Rodolphe rôdôlfˈ töpˈfər [key], 1799–1846, Swiss artist and writer, b. Geneva. Often called the father of the comic strip (or the graphic novel), he wanted to be a painter but found ...

Bel and the Dragon

(Encyclopedia)Bel and the Dragon, customary name for chapter 14 of the Book of Daniel, a passage included in the Septuagint and the Apocrypha. It was written possibly in the 1st cent. b.c. as a response to Gentile ...

Post, C. W.

(Encyclopedia)Post, C. W. (Charles William Post), 1854–1914, American food manufacturer and developer of breakfast cereals, b. Springfield, Ill. He worked (1872–86) selling agricultural machines and invented a ...

neuritis

(Encyclopedia)neuritis no͝orīˈtĭs, nyo͝o– [key], inflammation of a peripheral nerve, often accompanied by degenerative changes in nervous tissue. The cause can be mechanical (injury, pressure), vascular (occ...

cyanosis

(Encyclopedia)cyanosis sīˌənōˈsĭs [key], bluish coloration of the skin, mucous membranes, and nailbeds, resulting from a lack of oxygenated hemoglobin in the blood. It is a symptom of many disorders, includin...

stigmata

(Encyclopedia)stigmata stĭgˈmətə, stĭgmătˈə [key] [plural of stigma, from Gr.,=brand], wounds or marks on a person resembling the five wounds received by Jesus at the crucifixion. Some 300 cases of stigmati...

narcotic

(Encyclopedia)narcotic, any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium, its constituents morphine and codeine, and the morphine derivative hero...