Webster's English Dictionary

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core

1. core \'ko-(*)r, 'ko.(*)r\ n [ME] 1: a central or foundational part : as  
   1a: the usu. inedible central part of some fruits (as a pineapple); esp)X : 
   the papery or leathery carpels composing the ripened ovary in a pome fruit 
   1b: the portion of a foundry mold that shapes the interior of a hollow cast 
   ing 1c: a part removed from the interior of a mass  1d: the central strand 
   around which other strands twist in some ropes  1e: a mass of iron serving 
   to concentrate and intensify the magnetic field  resulting from a current 
   in the coil 1f: the conducting wire with its insulation in an electric 
   cable  1g: a layer of wood on which veneers are glued (as in making 
   plywood)  1h: an arrangement of a course of studies that combines under 
   certain basic  topics material from subjects conventionally separated and 
   aims to provide a common background for all students 2a: a basic, 
   essential, or enduring part  2b: the essential meaning : GIST 
2. core vt : to remove the core from  - cor.er n
3. core n [ME chore chorus, company, fr. L chorus] chiefly Scot  : COMPANY; 
   esp : a company of players in a curling match