Kernel can mean: Seed, in plants Kernel, an atom stripped of all its valence electrons. Kernel Fleck, a character in the Demonata series of books. Kernel (computer science), the main part of most operating systems. Linux kernel Kernel in game theory: a cooperative solution concept Kernel (Lilo & Stitch) experiment 014 from Lilo & Stitch. For "kernel" in mathematics see: Kernel (mathematics) Positive definite kernel Kernel (algebra) Kernel (functional analysis) Kernel (matrix) Kerne… (More on Kernel)