Definition of kernel

noun (n)

• the inner and usually edible part of a seed or grain or nut or fruit stone (noun.plant)

  Synonym: meat
  

  Example:
  Black walnut kernels are difficult to get out of the shell.
  

  source: wordnet30
• a single whole grain of a cereal (noun.plant)

  Example:
  A kernel of corn.
  

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

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

  source: wordnet30
• The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of a nut. See Illust. of Endocarp. (noun)

  source: webster1913

verb (v)

• To harden or ripen into kernels; to produce kernels. (verb)

  source: webster1913

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