kernel

Wikipedia

English

Etymology

From Old English cyrnel, diminutive of corn (“seed”), related to Old Norse kjarni (“kernel”)

Pronunciation

• (UK) IPA: /ˈkɜː(ɹ).nəl/, X-SAMPA: /"k3:(r).n@l/

  Rhymes: -ɜː(r)nəl

• (US) IPA: /ˈkɝnəl/, X-SAMPA: /"k3`n@l/
• Homophone: colonel

Noun

kernel (plural kernels)

1. The core, center, or essence of an object or system.
2. The central (usually edible) part of a nut, especially once the hard shell has been removed.
3. A single seed or grain, especially of corn or wheat.
4. (US) The stone of certain fruits, such as peaches or plums.
5. (computing) The central part of many computer operating systems which manages the system's resources and the communication between hardware and software components.
6. (mathematics, algebra) Those elements, in the domain of a function, which the function maps to zero.

   If a function is continuous then its kernel is a closed set.

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

Antonyms

• (computing): userland
• (algebra): support

Meronyms

• (algebra): root, zero

Derived terms

Derived terms

cokernel kernel function kernel hacker

kernel of truth kernel space kernelization

Translations

core or essence of an object or system

• Chinese:

  Mandarin: 核心 (cmn) (héxīn)

• Finnish: ydin (fi)
• French: noyau (fr) m
• German: Kern (de) m
• Greek: πυρήνας (el) (pyrínas) m
• Italian: nucleo (it) m, nocciolo (it) m
• Japanese: 核心 (ja) (かくしん, kakushin)

• Korean: 핵심 (ko) (hexim)
• Portuguese: cerne (pt) m
• Russian: ядро (ru) (jadró) n, суть (ru) (sutʹ) f, сущность (ru) (súščnostʹ) f
• Scottish Gaelic: eitean (gd) m, cridhe (gd) m
• Spanish: núcleo (es) m
• Turkish: öz (tr)

central part of a nut

• Finnish: pähkinä (fi)
• French: noyau (fr) m
• German: Kern (de) m
• Greek: πυρήνας (el) (pyrínas) m
• Icelandic: kjarni (is) m

• Italian: gheriglio (it) m
• Russian: ядро (ru) (jadró) n, сердцевина (ru) (serdcevína) f (fruit)
• Scottish Gaelic: eitean (gd) m
• Spanish: almendra (es) f, núcleo (es) m
• Turkish: göbek (tr)

single seed of corn or wheat

• Bulgarian: зърно (bg) (zărnó)
• Finnish: jyvä (fi)
• Italian: chicco (it) m
• Russian: зерно (ru) (zernó) n, зёрнышко (ru) (zjórnyško) n

• Scottish Gaelic: sìol (gd) m
• Spanish: grano (es) m
• Turkish: tane (tr)

(USkernel) stone of certain fruits, such as peaches or plums

• Czech: pecka (cs) f
• Finnish: kivi (fi)
• Greek: πυρήνας (el) (pyrínas) m, κουκούτσι (el) (koukoútsi) n
• Italian: nocciolo (it) m

• Kyrgyz: өзөк (ky) (özök)
• Russian: косточка (ru) (kóstočka) f
• Spanish: hueso (es) m, núcleo (es) m
• Turkish: çekirdek (tr)

(computingkernel) central part of many computer operating systems

• Czech: jádro (cs) n
• Danish: kerne (da) c
• Finnish: käyttöjärjestelmäydin (fi), kerneli (fi)
• German: Betriebssystemkern (de) m
• Greek: πυρήνας (el) (pyrínas) m
• Icelandic: kjarni (is) m, stýrikjarni (is) m

• Italian: kernel (it) m
• Kyrgyz: өзөк (ky) (özök), дан (ky) (dan)
• Polish: jądro (pl) n
• Russian: ядро (ru) (jadró) n
• Spanish: núcleo (es)
• Turkish: çekirdek (tr)

(mathematicskernel, algebraCategory:en:Algebra) set of elements mapped to zero

• Czech: jádro (cs) n
• Danish: kerne (da) c
• Dutch: kern (nl) m and f
• Finnish: ydin (fi)
• German: Kern (de) m

• Greek: πυρήνας (el) (pyrínas) m
• Italian: nucleo (it) m
• Polish: jądro (pl) n
• Russian: ядро (ru) (jadró) n
• Spanish: núcleo (es) m

(mathematicskernel, fuzzy set theory) Set of members of a fuzzy set that are fully included

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Translations to be checked

• Esperanto: kerno (eo)

• Georgian: მარცვალი (ka) (marc'vali)