n. The heart or innermost part of anything; hence, the nucleus or central or most essential part, literally or figuratively: as, the core of a question.n. Specifically— The central part of a fleshy fruit, containing the seeds or kernels: as, the core of an apple or a quince.n. In architecture, the inner part or filling of a wall or column.n. In medicine, the fibrous innermost part of a boil.n. In molding, the internal mold of a casting, which fills the space intended to be left hollow.n. In telegraphy, the central cord of insulated conducting wires in a submarine or subterranean cable.n. The iron nucleus of an electromagnet.n. In rope-making, a central strand around which other strands are twisted, as in a wire rope; or a cable.n. In hydraulic engineering, an impervious wall or structure, as of concrete, in an embankment or dike of porous material, to prevent the passage of water by percolation.n. The cylindrical piece of rock obtained in boring by means of the diamond drill or any other boring-machine which makes an annular cut. Also called carrot.n. The bony central part of the horn of a ruminant; a horn-core, or process of the frontal bone.n. In prehistoric archæol., a piece of flint, obsidian, or similar material, from which knives and other stone implements have been chipped.n. The center or innermost part of any open space.n. A disorder in sheep caused by worms in the liver.n. An internal induration in the udder of a cow.To make, mold, or cast on a core.To remove the core of, as of an apple or other fruit.To roll in salt and prepare for drying: applied to herrings.n. In mining, the number of hours, generally from six to eight, during which each party of miners works before being relieved. The miner's day is thus usually divided into three or four cores or shifts.n. A body.n. A body of persons; a party; a crew; a corps.n. Chosen; directed.