ker·nel /ˈkɝnḷ/
 內核核心,中心,精髓
 kernel
 核心
 kernel
 核心 核
 Ker·nel n.
 1. 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.
    'A were as good crack a fusty nut with no kernel   --Shak.
 2. A single seed or grain; as, a kernel of corn.
 3. A small mass around which other matter is concreted; a nucleus; a concretion or hard lump in the flesh.
 4. The central, substantial or essential part of anything; the gist; the core; as, the kernel of an argument.
 Ker·nel, v. i. [imp. & p. p. Kerneled or Kernelled; p. pr. & vb. n. Kerneling or Kernelling.] To harden or ripen into kernels; to produce kernels.
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 kernel
      n 1: the inner and usually edible part of a seed or grain or nut
           or fruit stone; "black walnut kernels are difficult to
           get out of the shell" [syn: meat]
      2: a single whole grain of a cereal; "a kernel of corn"
      3: the choicest or most essential or most vital part of some
         idea or experience; "the gist of the prosecutor's
         argument"; "the heart and soul of the Republican Party";
         "the nub of the story" [syn: substance, core, center,
          essence, gist, heart, heart and soul, inwardness,
          marrow, meat, nub, pith, sum, nitty-gritty]
      [also: kernelling, kernelled]