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Synonyms
core (kôr, kōr)

[Middle English.]

noun 

  1. The hard or fibrous central part of certain fruits, such as the apple or pear, containing the seeds.
  2. The central or innermost part: the hard elastic core of a baseball; a rod with a hollow core.
  3. The basic or most important part; the essence: a small core of dedicated supporters; the core of the problem. See synonyms at substance
  4. A set of subjects or courses that make up a required portion of a curriculum.
  5. Electricity A soft iron rod in a coil or transformer that provides a path for and intensifies the magnetic field produced by the windings.
    1. Computer Science A memory, especially one consisting of a series of tiny doughnut-shaped masses of magnetic material. Also called core memory
    2. One of the magnetic doughnut-shaped masses that make up such a memory. Also called magnetic core
  7. The central portion of the earth below the mantle, beginning at a depth of about 2,900 kilometers (1,800 miles) and probably consisting of iron and nickel. It is made up of a liquid outer core and a solid inner core.
  8. A mass of dry sand placed within a mold to provide openings or shape to a casting.
  9. A reactor core.
  10. A cylindrical sample of rock, ice, or other material obtained from the center of a mass by drilling or cutting.
  11. The base, usually of soft or inferior wood, to which veneer woods are glued.
  12. Archaeology A stone from which one or more flakes have been removed, serving as a source for such flakes or as a tool itself.

transitive verb: cored, cor·ing, cores. 

  1. To remove the core from: core apples.
  2. To remove (a cylindrical sample) from something, such as a glacier.
CORE (kôr, kōr)

abbreviation 

Congress of Racial Equality