kernel
UK /ˈkɜː.nəl/ · US /ˈkɝ.nəl/ noun, verb
Forms kernels kerneling kernelling kerneled kernelled
- noun The core, center, or essence of an object or system. “the kernel of an argument”
- noun (botany) The central (usually edible) part of a nut, especially once the hard shell has been removed.
- noun (botany) A single seed of grain, especially of corn or wheat.
- noun (botany, US) The stone of certain fruits, such as peaches or plums.
- noun A small mass around which other matter is concreted; a nucleus; a concretion or hard lump in the flesh.
- noun (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.”
- noun (computing) The core engine of any complex software system.
- noun (programming) The simplified input to an algorithm that has undergone kernelization.
- verb To enclose within a kernel
- verb To crenellate
Synonyms
crux gist bowels sum brass tacks core essence drift guts gravamen heart heart and soul heartstring heartstrings inwardness marrow meat moral of the story nitty-gritty nub substance center centre pith
Antonyms
Etymology
From Middle English kernel, kirnel, kürnel, from Old English cyrnel, from Proto-West Germanic *kurnil, diminutive of Proto-Germanic *kurną (“seed, grain, corn”), equivalent to corn + -le. Cognate with Yiddish קערנדל (kerndl), Middle Dutch kernel, cornel, Middle High German kornel. Related also to Old Norse kjarni (“kernel”).
Webster’s 1913
- noun The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of a nut. See Illust. of Endocarp.
- noun A single seed or grain; as, a kernel of corn.
- verb To harden or ripen into kernels; to produce kernels.
Etymology [OE. kernel, kirnel, curnel, AS.cyrnel, fr. corn grain. See Corn, and cf. Kern to harden.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “kernel”, CC BY-SA 4.0. Details