kernel has definitions from the field of botany
1
[ noun ] (botany) a single whole grain of a cereal

Examples

: "a kernel of corn"

Related terms

grain corn

2
[ noun ] (botany) the inner and usually edible part of a seed or grain or nut or fruit stone

Synonyms

meat

Examples

: "black walnut kernels are difficult to get out of the shell"

Related terms

plant_part seed

3
[ noun ] the choicest or most essential or most vital part of some idea or experience

Examples

: "the gist of the prosecutor's argument" "the heart and soul of the Republican Party" "the nub of the story"

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