Definition of core

noun (n)

• a small group of indispensable persons or things (noun.group)

  Synonym: core group, nucleus
  

  Example:
  Five periodicals make up the core of their publishing program.
  

  source: wordnet30
• the center of an object (noun.location)

  Example:
  The ball has a titanium core.
  

  source: wordnet30
• the central part of the Earth (noun.object)

  source: wordnet30
• the choicest or most essential or most vital part of some idea or experience (noun.cognition)

  Synonym: center, centre, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nitty-gritty, nub, pith, substance, sum
  

  source: wordnet30
• a cylindrical sample of soil or rock obtained with a hollow drill (noun.object)

  source: wordnet30
• an organization founded by James Leonard Farmer in 1942 to work for racial equality (noun.group)

  Synonym: congress of racial equality
  

  source: wordnet30
• the central meaning or theme of a speech or literary work (noun.communication)

  Synonym: burden, effect, essence, gist
  

  source: wordnet30
• (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories (noun.artifact)

  Synonym: magnetic core
  

  Example:
  Each core has three wires passing through it, providing the means to select and detect the contents of each bit.
  

  source: wordnet30
• the chamber of a nuclear reactor containing the fissile material where the reaction takes place (noun.artifact)

  source: wordnet30
• a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil (noun.artifact)

  source: wordnet30
• A body of individuals; an assemblage. (noun)

  source: webster1913
• A miner's underground working time or shift. (noun)

  source: webster1913
• A Hebrew dry measure; a cor or homer. (noun)

  source: webster1913
• 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. (noun)

  source: webster1913
• A mass of iron, usually made of thin plates, upon which the conductor of an armature or of a transformer is wound. (noun)

  source: webster1913

verb (v)

• remove the core or center from (verb.contact)

  Example:
  Core an apple.
  

  source: wordnet30
• To take out the core or inward parts of; as, to core an apple. (verb)

  source: webster1913

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