n. Any combination or assemblage of things adjusted as a regular and connected whole; a number of things or parts so connected as to make one complex whole; things connected according to a scheme: as, a system of canals for irrigation; a system of pulleys; a system of railroads; a mountain system; hence, more specifically, a number of heavenly bodies connected together and acting on each other according to certain laws: as, the solar system; the system of Jupiter and his satellites.n. A plan or scheme according to which ideas or things are connected into a whole; a regular union of principles or facts forming one entire whole; an assemblage of facts, or of principles and conclusions, scientifically arranged, or disposed according to certain mutual relations so as to form a complete whole; a connected view of all the truths or principles of some department of knowledge or action: as, a system of philosophy; a system of government; a system of education; a system of divinity; a system of botany or of chemistry; a system of railroading: often equivalent to method.n. The scheme of all created things considered as one whole; the universe.n. Regular method or order; plan: as, to have no system in one's business or study.n. In astronomy, any hypothesis or theory of the disposition and arrangements of the heavenly bodies by which their phenomena, their motions, changes, etc., are explained: as, the Ptolemaic system; the Copernican system; a system of the universe, or of the world.n. In the fine arts, a collection of the rules and principles upon which an artist works.n. In Byzantine music, an interval conceived of as compounded of two lesser intervals, as an octave or a tetrachord.n. In medieval and modern music, a series of tones arranged and classified for artistic use, like a mode or scale.n. In modern musical notation, two or more staffs braced together for concerted music.n. In ancient prosody, a group of two or more periods; by extension, a single period of more than two or three cola; a hypermetron.n. In biology: An assemblage of parts or organs of the same or similar tissues.n. Hence— In a wider sense, a concurrence of parts or organs in some function.n. Hence— In the widest sense, the entire body as a physiological unity or anatomical whole: as, to take food into the system; to have one's system out of order.n. In ascidiology, the cœnobium of those compound tunicates which have a common cloaca, as the Botryllidæ.n. One of the larger divisions of the geological series: as, the Devonian system; the Silurian system.n. In natural history: In the abstract, classification; any method of arranging, disposing, or setting forth animals and plants, or any series of these, in orderly sequence, as by classes, orders, families, genera, etc., with due coördination and relative subordination of the several groups; also, the principles of such classification; taxonomy: as, the morphological system; a physiological system.n. In the concrete, any zoölogical or botanical classification; any actual arrangement which is devised for the purpose of classifying and naming objects of natural history; a formal scheme, schedule, or inventory of such objects, or a systematic treatise upon them: as, the Linnean or artificial system of plants; Cuvier's system of classification; the quinarian system.n. See the qualifying words.n. See the qualifying words.