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 for Core box
From The Collaborative International Dictionary of English v.0.48 :

  Core \Core\, n. [OF. cor, coer, cuer, F. c[oe]ur, fr. L. cor
     heart. See Heart.]
     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.
        [1913 Webster]
              A fever at the core,
              Fatal to him who bears, to all who ever bore.
        [1913 Webster]
     2. The center or inner part, as of an open space; as, the
        core of a square. [Obs.] --Sir W. Raleigh.
        [1913 Webster]
     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.
        [1913 Webster +PJC]
     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.
        [1913 Webster]
     5. A disorder of sheep occasioned by worms in the liver.
        [Prov. Eng.] --Halliwell.
        [1913 Webster]
     6. (Anat.) The bony process which forms the central axis of
        the horns in many animals.
        [1913 Webster]
     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.
     Note: The presence of the iron intensifies the magnetic field
           created by a a current passing through the windings.
           [Webster 1913 Suppl. +PJC]
     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
     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.
     Note: The term was applied originally to the main memory,
           consisting of small ferromagnetic rings, that were used
           to store data in older computers, where each ring
           representing one bit of information by virtue of its
           state of magnetization. They were superseded by
           electronic data storage devices.
     Syn: core memory, random access memory, RAM
     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.
        [1913 Webster]

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