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prime minister

(Encyclopedia)prime minister or premier, chief member of the cabinet in a parliamentary system of government. The prime minister is head of the government, in contrast with the head of state, who may be a constitut...

root, in mathematics

(Encyclopedia)root, in mathematics, number or quantity r for which an equation f(r)=0 holds true, where f is some function. If f is a polynomial, r is called a root of f; for example, r=3 and r=−4 are roots of th...

Sanader, Ivo

(Encyclopedia)Sanader, Ivo ēˈvō sänändârˈ [key], 1953–, Croatian political leader, b. Split. He worked in marketing and publishing until 1991, when he became manager of the Croatian National Theater in Spl...

rainmaking

(Encyclopedia)rainmaking, production of rain by artificial means now generally disregarded, though it is probable that rainmaking hastens or increases rainfall from clouds suitable for natural rainfall. Interest in...

Papinian

(Encyclopedia)Papinian (Aemilius Papinianus) pəpĭnˈēən [key], d. 212, Roman jurist. He was a close friend of the Roman emperor Septimius Severus, under whom he was libellorum magister [master of the rolls] and...

Otis, James

(Encyclopedia)Otis, James, 1725–83, American colonial political leader, b. Barnstable co., Mass. A lawyer first in Plymouth and then in Boston, he won great distinction and served (1756–61) as advocate general ...

smart weapon

(Encyclopedia)smart weapon, missile or steerable bomb equipped with a laser, television, or satellite guidance system. Smart weapons, which use guidance systems that rely on external assistance, are distinguished f...

spraying

(Encyclopedia)spraying, horticultural practice of applying fungicides, insecticides, and herbicides, usually in solution, to plants. It may be accomplished by various means, e.g., the watering can, sprinkler attach...

cabildo

(Encyclopedia)cabildo käbēlˈdō [key], autonomous municipal council, the lowest administrative unit in the Spanish government. The institution was especially influential in Spanish America, where it was set up i...

calculus of variations

(Encyclopedia)calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the variables themselves, a...