To enclose within a kernel / To crenellate

A left-of-centre political party that campaigns for greater self-government for Cornwall.

(computing) A developer who maintains the Linux kernel code.

A hydrated borate mineral, Na₂B₄O₆(OH)₂, originally discovered in the Mojave Desert.

plural of kernel

Cornwall

(idiomatic) A core accuracy at the heart of a claim or narrative which also contains dubious or fictitious elements.

(US) Kernels of maize, either frozen or canned

(computer science) a technique for creating algorithms for fixed-parameter tractable problems

(rare, British spelling) Alternative spelling of kernelization