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horn, in zoology

(Encyclopedia)horn, in zoology, one of a pair of structures projecting from the head of a hoofed animal, used chiefly as a weapon. In cattle, sheep, Old World antelopes, and related animals the horns are permanent ...

Iberians

(Encyclopedia)Iberians, ancient people of Spain. Some scholars have argued that they migrated from Africa in the Neolithic period and again at the end of the Bronze Age, while the archaeological evidence has been i...

Julian Day calendar

(Encyclopedia)Julian Day calendar, system of astronomical dating that allows the difference between two dates to be calculated more easily than conventional civil calendars with their uneven months. It was devised ...

Cradle of Humankind

(Encyclopedia)Cradle of Humankind, extensive archaeological site, c.180 sq mi (470 sq km), encompassing dolomitic limestone caves containing numerous hominin fossils, Gauteng and North West prov., South Africa, c.3...

Saint-Quentin

(Encyclopedia)Saint-Quentin săN-käNtăNˈ [key], city (1990 pop. 62,085), Aisne dept., N France, on the Somme River. Foundry products, machinery, textiles, and food products are manufactured. Saint-Quentin was fa...

naturopathy

(Encyclopedia)naturopathy or naturopathic medicine, branch of alternative medicine concerned with holistic and noninvasive methods of treating illness and maintaining health. Centered on the use of natural substanc...

Oradea

(Encyclopedia)Oradea –mäˈrĕ [key], Hung. Nagyvárad, Ger. Grosswardein, city (1990 pop. 228,956), W Romania, in Crişana-Maramureş, near the Hungarian border. It is the marketing and shipping center for a liv...

Brongniart, Alexandre

(Encyclopedia)Brongniart, Alexandre brôNyärˈ [key], 1770–1847, French geologist, mineralogist, and chemist. As director of the Sèvres porcelain factory from 1800, he was responsible for its international fam...

goldwork

(Encyclopedia)goldwork, ornaments, jewelry, and vessels created from gold. Such works have figured in almost every stage of civilization as symbols of wealth and power. During the craft revival of the 1960s and 7...

isotope

(Encyclopedia)CE5 Isotopes of hydrogen isotope īˈsətōp [key], in chemistry and physics, one of two or more atoms having the same atomic number but differing in atomic weight and mass number. The concept of ...