Kernel

Kernel
Etymology
Uses

The word kernel refers to something at the core of a system.

Etymology

The English word comes from Middle English kernel, from Old English cyrnel, from Proto-West Germanic *kurnil, diminutive of Proto-Germanic *kurna ("seed, grain, corn), equivalent to "corn" + "-le". This further comes from the Proto-Indo-European *grh-nom ("grain, worn-down"), from *gerh- (grow old, mature).

This word is also a doublet of "grain".

Uses

In computer science

In operating systems

Kernel refers to the core of an operating system.

In image processing

Kernel refers to a matrix used for image convolution.

In 3D modelling

Geometric Kernel refers to

In mathematics

In algebra

In linear algebra

In category theory

In set theory

In abstract algebra

Difference Kernel refers to the kernel of the difference of two functions.

In functions

In geomtery
In statistics

In physics

It refers to the atomic nucleus.

In biology

It refers to the seeds inside the nut of most plants or the drupes (or stone fruits), especially:

Apricot kernel
Corn kernel
Palm kernel
Wheat kernel