kernel

noun · verbA2

Định nghĩa theo từ loại

Danh từ

noun

Plural noun:

kernels

1.
The core, center, or essence of an object or system.
the kernel of an argument
Đồng nghĩa: crux, gist, bowels, sum, brass tacks, core, crux, essence, gist, drift, guts, gravamen, heart, heart and soul, heartstring, heartstrings, inwardness, kernel, marrow, meat, moral of the story, nitty-gritty, nub, nuts and bolts, pith, punctum saliens, quintessence, soul, spirit, stuff, substance, tenor
2.
(botany) The central (usually edible) part of a nut, especially once the hard shell has been removed.
3.
(botany) A single seed of grain, especially of corn or wheat.
4.
(US)(botany, US) The stone of certain fruits, such as peaches or plums.
5.
A small mass around which other matter is concreted; a nucleus; a concretion or hard lump in the flesh.
6.
(computing) The central part of many computer operating systems which manages the system's resources and the communication between hardware and software components.
The Linux kernel is open-source.
7.
(computing) The core engine of any complex software system.
8.
(programming) The simplified input to an algorithm that has undergone kernelization.
9.
(calculus) A function used to define an integral transform.
The Dirichlet kernel convolved with a function yields its Fourier series approximation.
10.
(mathematics, set theory, of a function f) The set of pairs of elements in the domain of f which are mapped to the same value; the equivalence relation x≡y⟺f(x)=f(y).
If a function is continuous then its kernel is a closed set.
11.
(mathematics, algebra, loosely, of a morphism f between algebraic structures) The set of elements of the domain of f which are mapped to an identity element.
12.
(mathematics, category theory, of a morphism f:X→Y in a category with zero morphisms) The equalizer of f and the zero morphism from X to Y, denoted operatorname kerf.

Động từ

verb

V_es/s

kernels

V_ing/Gerund

kerneling

V_ed/pp

kernellingkerneled

1.
To enclose within a kernel
2.
To crenellate

Từ liên quan

Đồng nghĩa

crux gist bowels sumbrass tackscoreessencedrift guts gravamen heartheart and soulheartstringheartstringsinwardnessmarrow meatmoral of the storynitty-grittynub

Trái nghĩa

userlandsupport

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Nguồn gốc từ

From Middle English kernel, kirnel, kürnel, from Old English cyrnel, from *kurnil, diminutive of Proto-Germanic *kurną (seed, grain, corn), equivalent to corn + -le. Cognate with קערנדל, kernel, cornel, kornel. Related also to kjarni.