kernel

Wikipedia

English

Etymology

From Old English cyrnel, diminutive of corn (“seed”)

Pronunciation

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

  Rhymes: -ɜː(r)nəl

• (US) IPA: /ˈkɝnəl/, 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. (computing) The central part of many computer operating systems which manages the system's resources and the communication between hardware and software components.
5. (US) The stone of certain fruits, such as peaches or plums.
6. (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. (fuzzy set theory) The set of members of a fuzzy set which are fully included (i.e., whose grade of membership is 1).

Antonyms

• (algebra): support

Meronyms

• (algebra): root, zero

Derived terms

• kernel function
• kernelization
• kernel of truth
• kernel hacker
• kernel space
• cokernel

Translations

core or essence of an object or system

Italian: nucleo (it) m., nocciolo (it) m. Korean: 핵심 (ko) (hexim)

Portuguese: cerne (pt) m. Scottish Gaelic: eitean (gd) m., cridhe (gd) m.

central part of a nut

German: Kern (de) m. Icelandic: kjarni (is) m.

Italian: gheriglio (it) m. Scottish Gaelic: eitean (gd) m.

single seed of corn or wheat

Bulgarian: зърно (bg) (zărnó) Italian: chicco (it) m.

Scottish Gaelic: sìol (gd) m.

central part of many computer operating systems

Czech: jádro (cs) n. Danish: kerne (da) c. Finnish: käyttöjärjestelmäydin, kerneli German: Betriebssystemkern (de) m. Greek: πυρήνας (el) (pirínas) m.

Icelandic: kjarni (is) m., stýrikjarni (is) m. Italian: kernel (it) m. Polish: jądro (pl) n. Russian: ядро (ru) (jadró) n. Spanish: núcleo (es)

stone of certain fruits, such as peaches or plums

Czech: pecka (cs) f. Greek: πυρήνας (el) (pirínas) m., κουκούτσι (el) (koukoútsi) n.

Italian: nocciolo (it) m. Russian: косточка (ru) (kóstočka) f.

(algebra) set of elements mapped to zero

Czech: jádro (cs) n. Danish: kerne (da) c. Finnish: ydin (fi)

Italian: nucleo (it) m. Russian: ядро (ru) (jadró) n.

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Translations to be checked

Esperanto: kerno (eo)