The word "kernel" refers to the core or essential part of something. It represents the central element that is essential for the functioning or development of a system or entity. Full definition
The whole kernel of truth: as part of your healthy way of eating, whole grains can significantly lower your risk of cardiovascular disease, obesity and type 2 diabetes. (whfoods.org)
The release of kernel sources is particularly important for our community. (xda-developers.com)
It is different from palm kernel oil, which comes from the seed inside the fruit, and does not have the same health benefits. (petbusiness.com)