261. ELECTRIC MOTOR(Английские словари. English dictionaries./Britannica English vocabulary) any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena such as the coupling between the electrical and mechanical systems. The electric ...
262. ELECTROMAGNETIC RADIATION(Английские словари. English dictionaries./Britannica English vocabulary) in terms of classical theory, the flow of energy at the universal speed of light through free space or through a material medium in the form of the electric and magnetic fields that make up electromagnetic ...
263. MASS FLOW(Английские словари. English dictionaries./Britannica English vocabulary) ... source areas, where they are manufactured (mainly in the leaves) or stored (such as in the storage tissues of stems and roots), to sink areas, where they are metabolized or stored. (Storage tissues, it ...
264. OXYGEN GROUP ELEMENT(Английские словари. English dictionaries./Britannica English vocabulary) also called chalcogen any of the five chemical elements comprising Group VIa of the periodic classificationnamely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and polonium (Po). In cosmic abundance ...
265. PHYSICAL SCIENCE(Английские словари. English dictionaries./Britannica English vocabulary) the systematic study of the inorganic world, as distinct from the study of the organic world, which is the province of biological science. Physical science is ordinarily thought of as consisting of four ...
266. PROJECTOR(Английские словари. English dictionaries./Britannica English vocabulary) device for transferring photographic and other images in an enlarged form onto a viewing screen. All types of projectors employ a light source and a lens system. A simple still-photo or slide projector ...
267. RADIATION(Английские словари. English dictionaries./Britannica English vocabulary) either the process by which energy is emitted from a source and propagated through the surrounding medium or the energy involved in this process. Familiar examples of radiant energy include light (a form ...
268. RADIO SOURCE(Английские словари. English dictionaries./Britannica English vocabulary) in astronomy, any of various objects in the universe that emit relatively large amounts of radio waves. Nearly all types of astronomical objects give off some radio radiation, but the strongest sources ...
269. RADIOACTIVITY(Английские словари. English dictionaries./Britannica English vocabulary) property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei. Radioactivity was first reported in ...
270. TELEPHONE(Английские словари. English dictionaries./Britannica English vocabulary) an instrument that is designed for the simultaneous transmission and reception of the human voice. Inexpensive, simple to operate, and offering its user a personal type of communication that cannot be ...
271. WHENCE(Английские словари. English dictionaries./Merriam-Webster English vocab) [whence] adv [ME whennes, fr. whenne whence (fr. OE hwanon) + -s, adv. suffix, fr. -s, gen. sing. ending; akin to OHG hwanan whence, OE hwa who] (13c): from what place, source, or cause "then ~ comes this ...
272. SPRING(Английские словари. English dictionaries./Webster English vocab) ... springs, or is originated, from a source;. 10. spring ·vi the time of growth and progress; ea ...
273. RESOURCE(Английские словари. English dictionaries./Merriam-Webster's Collegiate English vocabulary) noun Etymology: French ressource, from Old French ressourse relief, resource, from resourdre to relieve, literally, to rise again, from Latin resurgere — more at resurrection Date: circa ...
274. DRAW(Английские словари. English dictionaries./Random House Webster's Unabridged English Dictionary) ... out, or off ). 2. to bring, take, or pull out, as from a receptacle or source: to draw water from a well. 3. to bring toward oneself or itself, as by inherent force or influence; attract: The ...
275. DERIVE(Английские словари. English dictionaries./Webster's New International English Dictionary) də̇ˈrīv, dēˈ- verb ( -ed/-ing/-s ) Etymology: Middle English deriven to come (as from a source), receive (as from a source), divert (as water) into a different channel, from Middle French deriver, ...
276. GLEAN(Английские словари. English dictionaries./Webster's New International English Dictionary) ˈglēn verb ( -ed/-ing/-s ) Etymology: Middle English glenen, from Middle French glener, from Late Latin glenare, glennare, of Gaulish origin; akin to Middle Irish di gliunn I glean; akin to Russian ...
277. MINE(Английские словари. English dictionaries./Webster's New International English Dictionary) I. Etymology: Middle English min, from Old English mīn, suppletive gen. of ic I; Old English mīn akin to Old High German mīn (suppletive gen. of ih I), Old Norse mīn (suppletive gen. of ek I), Gothic ...
278. SPIRIT(Английские словари. English dictionaries./Webster's New International English Dictionary) I. ˈspirə̇t, chiefly dial ˈsper-; usu -ə̇d.+V noun ( -s ) Usage: often attributive Etymology: Middle English, from Old French or Latin; Old French spirit, espirit, esperit, from Latin ...
279. POINT SOURCE(Английские словари. English dictionaries./Webster's New International English Dictionary) I. noun : a source of light or other radiation that is concentrated at a point II. noun an identifiable confined source (as a smokestack or wastewater treatment plant) from which a pollutant ...
280. Q(Английские словари. English dictionaries./Webster's New International English Dictionary) I. ˈkyü noun ( plural q's or qs ) Usage: often capitalized, often attributive 1. a. : the 17th letter of the English alphabet b. : an instance of this letter printed, written, ...