|1.||the central part of certain fleshy fruits, such as the apple or pear, consisting of the seeds and supporting parts|
|2.||a. the central, innermost, or most essential part of something: the core of the argument|
|b. (as modifier): the core meaning|
|3.||a piece of magnetic material, such as soft iron, placed inside the windings of an electromagnet or transformer to intensify and direct the magnetic field|
|4.||geology the central part of the earth, beneath the mantle, consisting mainly of iron and nickel, which has an inner solid part surrounded by an outer liquid part|
|5.||a cylindrical sample of rock, soil, etc, obtained by the use of a hollow drill|
|6.||shaped body of material (in metal casting usually of sand) supported inside a mould to form a cavity of predetermined shape in the finished casting|
|7.||physics the region of a nuclear reactor in which the reaction takes place|
|8.||a layer of wood serving as a backing for a veneer|
|a. one of several processing units working in parallel in a computer|
|b. a ferrite ring formerly used in a computer memory to store one bit of information|
|c. short for core store|
|d. (as modifier): core memory|
|10.||archaeol a lump of stone or flint from which flakes or blades have been removed|
|11.||physics the nucleus together with all complete electron shells of an atom|
|12.||(tr) to remove the core from (fruit)|
|[C14: of uncertain origin]|
The central or innermost part.
The part of a nuclear reactor where fission occurs.
|core (kôr) Pronunciation Key
Note: The core is made primarily of iron and nickel and has two parts — an inner solid core and an outer liquid core.
Note: The mantle is the layer of the Earth that overlies the core.
coren. Main storage or RAM. Dates from the days of ferrite-core memory; now archaic as techspeak 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' (as opposed to `on disk'), and both core dump and the `core image' or `core file' produced by one are terms in favor. Some varieties of Commonwealth hackish prefer store.
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