n. the inner and usually edible part of a seed or grain or nut or fruit stone
n. a single whole grain of a cereal
n. the choicest or most essential or most vital part of some idea or experience
n. 核心, 中心, 精髓, 内核
[计] 内核
1. The kernel of the corn is the part we eat.
玉米的内核是我们吃的部分。
2. In computer science, the kernel is the core part of an operating system.
在计算机科学中，内核是操作系统的核心部分。
3. You need to remove the kernel from the fruit before blending it.
在搅拌前，你需要把水果的核去掉。