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| core [ kawr ] |
noun (plural cores) |
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| Definition: |
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1. essential part: the central or most important part of something
  the core of the argument
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2. central part of fruit: the fibrous central part of some fruit, containing the seeds
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3. geology center of Earth: the central part of Earth, or the corresponding part of another astronomical object. Earth's core is molten in parts and is composed of an alloy of iron and nickel.
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4. comput computer memory: the main memory of a computer, which was composed of arrays of ring-shaped magnets before the introduction of semiconductor memories
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5. comput piece of computer memory: formerly, a ring-shaped piece of magnetic material used to store digital data in a computer, each core representing one binary digit bit
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6. geology sample obtained by drilling: a tubular segment of rock, ice, or other material obtained as a study sample by drilling
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7. energy central part of nuclear reactor: the central part of a nuclear reactor in which fission takes place
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8. electricity iron in transformer: a block of iron in a coil or transformer, used to intensify and direct the magnetic field produced by a current in surrounding coils
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9. prehistory stone used to make tools: a block of stone from which tools or flakes are chipped
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adjective |
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| Definition: |
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essential: of central or fundamental importance
The company's core business is steel manufacturing.
core competencies
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transitive verb (past and past participle cored, present participle cor·ing, 3rd person present singular cores) |
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| Definition: |
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take core out of fruit: to remove the core from a piece of fruit
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| [13th century. Origin ?] |
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| cor·er noun |
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