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nervous system

(Encyclopedia)CE5 Nerve cell CE5 Nervous system nervous system, network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of ...

surgery

(Encyclopedia)surgery, branch of medicine concerned with the diagnosis and treatment of injuries and the excision and repair of pathological conditions by means of operative procedures (see also anesthesia; medicin...

marijuana

(Encyclopedia)marijuana or marihuana, drug obtained from the flowering tops, stems, and leaves of the hemp plant, Cannabis sativa (see hemp) or C. indica; the latter species can withstand colder climates. It is one...

science

(Encyclopedia)science [Lat. scientia=knowledge]. For many the term science refers to the organized body of knowledge concerning the physical world, both animate and inanimate, but a proper definition would also hav...

Israel, country, Asia

(Encyclopedia)CE5 Israel ĭzˈrēəl [key], officially State of Israel, republic (2015 est. pop. 8,065,000, including Israelis in occupied Arab territories), 7,992 sq mi (20,700 sq km), SW Asia, on the Mediterra...

mathematics

(Encyclopedia)mathematics, deductive study of numbers, geometry, and various abstract constructs, or structures; the latter often “abstract” the features common to several models derived from the empirical, or ...

computer

(Encyclopedia)CE5 Schematic diagram of a computer system: Data flow is indicated by solid lines; control signals are indicated by dashed lines. computer, device capable of performing a series of arithmetic or l...