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formula, in chemistry
(Encyclopedia) formula, in chemistry, an expression showing the chemical composition of a compound. Formulas of compounds are used in writing the equations (see chemical equations) that represent…brain
(Encyclopedia) CE5 Brain brain, the supervisory center of the nervous system in all vertebrates. It also serves as the site of emotions, memory, self-awareness, and thought. Brain research, now…intuition
(Encyclopedia) intuition, in philosophy, way of knowing directly; immediate apprehension. The Greeks understood intuition to be the grasp of universal principles by the intelligence (nous), as…library school
(Encyclopedia) library school, educational institution providing professional training for librarians (see also library). Librarians were trained by apprenticeship until the late 19th cent. The first…MacMillan, Donald Baxter
(Encyclopedia) MacMillan, Donald Baxter, 1874–1970, American arctic explorer, b. Provincetown, Mass., grad. Bowdoin College, 1898, and studied at Harvard. After a decade of teaching, he went on the…digital radio
(Encyclopedia) digital radio, audio broadcasting in which an analog audio signal is converted into a digital signal before being transmitted; also known as digital audio broadcasting (DAB) and high-…chart
(Encyclopedia) chart, term referring to maps prepared for marine navigation and for air navigation. All charts show, in some convenient scale, geographic features useful to the navigator, as well as…paramecium
(Encyclopedia) parameciumparameciumparəmēˈsĭəm [key], unicellular organism of the genus Paramecium, of the ciliate phylum Ciliophora found in freshwater throughout the world. Like other protozoans,…Essenes
(Encyclopedia) EssenesEssenesĕsˈēnz [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…fraud
(Encyclopedia) fraud, in law, willful misrepresentation intended to deprive another of some right. The offense, generally only a tort, may also constitute the crime of false pretenses. Frauds are…Trending
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