Core

n.	1.	A body of individuals; an assemblage. He was in a core of people. - Bacon.
	1.	(Mining.) A miner's underground working time or shift.
	1.	A Hebrew dry measure; a cor or homer.
	1.	The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc.; especially, the central part of fruit, containing the kernels or seeds; as, the core of an apple or quince. A fever at the core, Fatal to him who bears, to all who ever bore. - Byron.
	2.	The center or inner part, as of an open space; as, the core of a square.
	3.	The most important part of a thing; the essence; as, the core of a subject; - also used attributively, as the core curriculum at a college.
	4.	(Founding) The portion of a mold which shapes the interior of a cylinder, tube, or other hollow casting, or which makes a hole in or through a casting; a part of the mold, made separate from and inserted in it, for shaping some part of the casting, the form of which is not determined by that of the pattern.
	5.	A disorder of sheep occasioned by worms in the liver.
	6.	(Anat.) The bony process which forms the central axis of the horns in many animals.
	7.	(Elec.) A mass of iron or other ferrous metal, forming the central part of an electromagnet, such as those upon which the conductor of an armature, a transformer, or an induction coil is wound.
	8.	(mining) a sample of earth or rock extracted from underground by a drilling device in such a manner that the layers of rock are preserved in the same order as they exist underground; as, to drill a core; to extract a core. The sample is typically removed with a rotating drill bit having a hollow center, and is thus shaped like a cylinder.
	9.	(Computers) The main working memory of a digital computer system, which typically retains the program code being executed as well as the data structures that are manipulated by the program. Contrasted to ROM and data storage device.
	10.	(Geol.) the central part of the earth, believed to be a sphere with a radius of about 2100 miles, and composed primarily of molten iron with some nickel. It is distinguished from the crust and mantle.
	11.	(Engineering) the central part of a nuclear reactor, containing the fissionable fuel. Core box (Founding) a box or mold, usually divisible, in which cores are molded. Core print (Founding) a projecting piece on a pattern which forms, in the mold, an impression for holding in place or steadying a core. Core dump See core dump in the vocabulary.
v. t.	1.	To take out the core or inward parts of; as, to core an apple. [imp. & p. p. Cord (k?rd); p. pr. & vb. n. Coring.] He's like a corn upon my great toe . . . he must be cored out. - Marston.
	2.	To form by means of a core, as a hole in a casting.
	3.	To extract a cylindrical sample from, with a boring device. See core{8}.

Noun	1.	core - the center of an object; "the ball has a titanium core"
	2.	core - a small group of indispensable persons or things; "five periodicals make up the core of their publishing program" Synonyms: core group, nucleus
	3.	core - the central part of the Earth
	4.	core - the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story" Synonyms: heart and soul, inwardness, essence, nitty-gritty, pith, gist, meat, kernel, substance, nub, sum, marrow, center, heart
	5.	core - a cylindrical sample of soil or rock obtained with a hollow drill
	6.	CORE - an organization founded by James Leonard Farmer in 1942 to work for racial equality Synonyms: Congress of Racial Equality
	7.	core - the central meaning or theme of a speech or literary work Synonyms: gist, essence, burden, effect
	8.	core - the chamber of a nuclear reactor containing the fissile material where the reaction takes place
	9.	core - a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
Verb	1.	core - remove the core or center from; "core an apple"

core - 1. Main memory or RAM. This term dates from the days of ferrite core memory; now archaic most places outside IBM, but also still used in the Unix community and by old-time hackers or those who would sound like them. Some derived idioms are quite current; "in core", for example, means "in memory" (paged in, as opposed to "on disk", paged out), and both core dump and the "core image" or "core file" produced by one are terms in favour. Some varieties of Commonwealth hackish prefer store.

Bowery, Chinatown, East End, East Side, Little Hungary, Little Italy, West End, West Side, amidships, amount, average, axiom, axis, barrio, base, basis, beginning, bench mark, black ghetto, blighted area, body, bosom, bulk, burden, business district, cardinal point, center of action, center of gravity, central, central city, centroid, centrum, chief thing, city center, climax, commencement, consequence, cornerstone, corpus, crisis, critical point, crux, dead center, deepest recesses, diameter, diaphragm, distillate, distillation, downtown, elixir, epicenter, equator, equatorial, equidistant, essence, essential, essential matter, fabric, flower, focus, foundation, fundamental, ghetto, gist, gravamen, great point, greenbelt, halfway, heart of hearts, high point, hub, hypostasis, import, importance, important thing, inner, inner city, inner essence, inner landscape, inner life, inner man, inner nature, inner recess, inner self, inside, insides, interior, interior man, intermediary, intermediate, intern, internal, intrados, inward, issue, keystone, landmark, main point, main thing, marrow, mass, material, material point, matter, mean, meat, medial, median, mediocre, mediterranean, medium, medulla, mesial, metacenter, mezzo, mid, middle, middlemost, middling, midland, midmost, midriff, midships, midst, midtown, midway, milestone, nave, navel, nub, nuclear, nucleus, nuts and bolts, omphalos, origin, penetralia, pit, pith, pivot, postulate, principle, purport, quick, quid, quiddity, quintessence, real issue, recap, recapitulation, recesses, red-light district, residential district, resume, root, run-down neighborhood, run-through, rundown, salient point, sap, secret place, secret places, seed, shopping center, significance, sine qua non, skid road, skid row, slum, slums, soul, spirit, staple, start, storm center, stuff, substance, substantive point, suburbia, suburbs, sum, sum and substance, summary, summation, tenderloin, tenement district, the bottom line, the nitty-gritty, the point, thick, thick of things, thrust, turning point, umbilicus, upshot, uptown, urban blight, vital center, vitals, waist, waistline, zone

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