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radioactive waste

(Encyclopedia)radioactive waste, material containing the unusable radioactive byproducts of the scientific, military, and industrial applications of nuclear energy. Since its radioactivity presents a serious health...

gladiators

(Encyclopedia)gladiators [Lat.,=swordsmen], in ancient Rome, class of professional fighters, who performed for exhibition. Gladiatorial combats usually took place in amphitheaters. They probably were introduced fro...

Nemean lion

(Encyclopedia)Nemean lion nĭmēˈən [key], in Greek mythology, an enormous lion, said to be the offspring of Echidna and Typhon. It was invulnerable to all weapons until Hercules, in his first labor, strangled it...

Jabalpur

(Encyclopedia)Jabalpur jŭbˌəlpôrˈ [key], city (1991 pop. 888,916), Madhya Pradesh state, central India, on the Narmada River. It is a district administrative center and an important rail junction and military ...

tank, military

(Encyclopedia)tank, military, armored vehicle having caterpillar traction and armed with machine guns, cannon, rockets, or flame throwers. The tank, together with the airplane, opened up modern warfare, which had b...

Bronze Age

(Encyclopedia)Bronze Age, period in the development of technology when metals were first used regularly in the manufacture of tools and weapons. Pure copper and bronze, an alloy of copper and tin, were used indiscr...

Miamisburg

(Encyclopedia)Miamisburg mīămˈēzbûrgˌ [key], city (1990 pop. 17,834), Montgomery co., SW Ohio, on the Miami River; laid out 1818, inc. 1932. It is a tobacco market with diverse agriculture, and metal and pape...

strategy and tactics

(Encyclopedia)strategy and tactics, in warfare, related terms referring, respectively, to large-scale and small-scale planning to achieve military success. Strategy may be defined as the general scheme of the condu...

Essenes

(Encyclopedia)Essenes ĕsˈēnz [key], members of a small Jewish religious order, originating in the 2d cent. b.c. The chief sources of information about the Essenes are Pliny the Elder, Philo's Quod omnius probus ...

Hogarth, William

(Encyclopedia)Hogarth, William, 1697–1764, English painter, satirist, engraver, and art theorist, b. London. At the age of 15 he was apprenticed to a silver-plate engraver. He soon made engravings on copper for b...