kernel meaning and definition

KERNEL noun

Definition of kernel (noun)

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