Kernel
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Kernel
See also: kérnél

English

English Wikipedia has articles on:
Wikipedia

Etymology

From Middle English kernel, kirnel, kürnel, from Old English cyrnel, from Proto-Germanic *kurnilaz, diminutive of *kurn? ("seed, grain, corn"), equivalent to corn +‎ -le. Cognate with Yiddish (kerndl), Middle Dutch kernel, cornel, Middle High German kornel. Related also to Old Norse kjarni ("kernel").

Pronunciation

Noun

kernel (plural kernels)

  1. The core, center, or essence of an object or system.
    the kernel of an argument
    Synonyms: crux, gist
  2. (botany) The central (usually edible) part of a nut, especially once the hard shell has been removed.
  3. (botany) A single seed or grain, especially of corn or wheat.
  4. (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.
    Hyponyms: microkernel, unikernel
    The Linux kernel is open-source.
  7. (computing) The core engine of any complex software system.
    Antonym: userland
  8. (calculus) A function used to define an integral transform.
    The Dirichlet kernel convolved with a function yields its Fourier series approximation.
  9. (mathematics) A set of pairs of a mapping's domain which are mapped to the same value.
  10. (mathematics, linear algebra, functional analysis) For a given function (especially a linear map between vector spaces), the set of elements in the domain which are mapped to zero; (formally) given f : X -> Y, the set {x ? X : f(x) = 0}.
    If a function is continuous then its kernel is a closed set.
    Antonym: support
    Meronyms: root, zero
  11. (mathematics, category theory) For a category with zero morphisms: the equalizer of a given morphism and the zero morphism which is parallel to that given morphism.
  12. (mathematics, fuzzy set theory) The set of members of a fuzzy set that are fully included (i.e., whose grade of membership is 1).
  13. (slang) The human clitoris.
    • 2014, Karyn Gerrard, Irene Preston, Lotchie Burton et al, Summer Heat: 10 Spicy Romances That Sizzle
      Using the blunt end of one of the vibraphone mallets, he pried open her folds. With the balled end of the other, he rhythmically rolled over her kernel.
  14. (chemistry) The nucleus and electrons of an atom excluding its valence electrons.
    • 1916, Gilbert N. Lewis, "The Atom and The Molecule," Journal of the American Chemical Society 38(4) p 768.
      1. In every atom is an essential kernel which remains unaltered in all ordinary chemical changes and which possesses an excess of positive charges corresponding in number to the ordinal number of the group in the periodic table to which the element belongs.

Synonyms

Derived terms

Translations

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 Wiktionary:Entry layout#Translations.

Anagrams


Hungarian

Etymology

From English kernel. [1]

Pronunciation

  • IPA(key): ['k?rn?l]
  • Hyphenation: ker?nel
  • Rhymes: -?l

Noun

kernel (plural kernelek)

  1. (computing) kernel (the central part of many computer operating systems)
    Synonym: rendszermag

Declension

Possessive forms of kernel
possessor single possession multiple possessions
1st person sing. kernelem kerneleim
2nd person sing. kerneled kerneleid
3rd person sing. kernele kernelei
1st person plural kernelünk kerneleink
2nd person plural kerneletek kerneleitek
3rd person plural kernelük kerneleik

References

  1. ^ Tótfalusi, István. Idegenszó-tár: Idegen szavak értelmez? és etimológiai szótára ('A Storehouse of Foreign Words: an explanatory and etymological dictionary of foreign words'). Budapest: Tinta Könyvkiadó, 2005. ->ISBN

Middle English

Alternative forms

Etymology

From Old English cyrnel, from Proto-Germanic *kurnilaz; equivalent to corn +‎ -el. Some forms are influenced by corn.

Pronunciation

  • IPA(key): /'k?rn?l/, /'kirn?l/, /'kurn?l/, /'k?rn?l/

Noun

kernel (plural kerneles)

  1. A seed, grain or stone of a fruit, corn, or nut; a pepper corn.
  2. (figuratively) The core or most important part of a thing.
  3. (figuratively) The start of an enterprise or endeavour.
  4. (anatomy) A organ responsible for production of substances.
  5. (medicine) A distended organ or growth.
  6. (rare) A small pebble or rock; a flake of salt.

Derived terms

Descendants

  • English: kernel
  • Scots: kirnel; churnel

References


Old French

Alternative forms

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.).

Noun

kernel m (oblique plural kerneaus or kerneax or kerniaus or kerniax or kernels, nominative singular kerneaus or kerneax or kerniaus or kerniax or kernels, nominative plural kernel)

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

Descendants

References

  • Godefroy, Frédéric, Dictionnaire de l'ancienne langue française et de tous ses dialectes du IXe au XVe siècle (1881) (crenel, supplement)

Portuguese

Etymology

From English kernel.

Noun

kernel m (plural kernels)

  1. (computing) kernel (central part of certain operating systems)
    Synonym: núcleo

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