What is the meaning of Kernel?

The core, center, or essence of an object or system.

The central (usually edible) part of a nut, especially once the hard shell has been removed.

A single seed or grain, especially of corn or wheat.

The stone of certain fruits, such as peaches or plums.

A small mass around which other matter is concreted; a nucleus; a concretion or hard lump in the flesh.

The central part of many computer operating systems which manages the system's resources and the communication between hardware and software components.

The core engine of any complex software system.

The simplified input to an algorithm that has undergone kernelization.

A function used to define an integral transform.

A set of pairs of a mapping's domain which are mapped to the same value.

For a given function (especially a linear transformation between vector spaces or homomorphism between groups), the set of elements in the domain which are mapped to zero; given f : X  Y, the set {x  X : f(x) = 0}.

For a category with zero morphisms: the equalizer of a given morphism and the zero morphism which is parallel to that given morphism.

The set of members of a fuzzy set that are fully included (i.e., whose grade of membership is 1).

The human clitoris.

The nucleus and electrons of an atom excluding its valence electrons.

To enclose within a kernel

To crenellate

kernel (the central part of many computer operating systems)

The seed, grain or stone of a fruit or nut.

A granule; a small grain, flake, or ball.

The fundamental, superior or essential part.

An organ responsible for production of substances.

A distended organ or growth.

crenel (space in a battlement from which weapons may be used on an incoming enemy)

kernel (central part of certain operating systems)

kernel (a function used to define an integral transform)

kernel (set of elements mapped to zero)

Source: wiktionary.org