core

noun

1. (countable, uncountable)In general usage, an essential part of a thing surrounded by other essential things.

   “the core of an apple or quince”

2. (countable, uncountable)In general usage, an essential part of a thing surrounded by other essential things.

   “Reindeer are well suited to the taiga’s frigid winters. They can maintain a thermogradient between body core and the environment of up to 100 degrees, in part because of insulation provided by their fur, and in part because of counter-current vascular heat exchange systems in their legs and nasal passages.”

3. (countable, uncountable)In general usage, an essential part of a thing surrounded by other essential things.
4. (countable, uncountable)In general usage, an essential part of a thing surrounded by other essential things.

   “the core of the square”

5. (countable, uncountable)The most important part of a thing or aggregate of things wherever located and whether of any determinate location at all; the essence.

   “the core of a subject”

   “Jones’ sad eyes betray a pervasive pain his purposefully spare dialogue only hints at, while the perfectly cast Brolin conveys hints of playfulness and warmth while staying true to the craggy stoicism at the character’s core.”

   “General vocabulary is often defined as a common core of English words and operationalized as the most frequent words in a balanced and representative corpus of English.”

6. (countable, uncountable)The most important part of a thing or aggregate of things wherever located and whether of any determinate location at all; the essence.
7. (countable, uncountable)The most important part of a thing or aggregate of things wherever located and whether of any determinate location at all; the essence.
8. (countable, uncountable)The most important part of a thing or aggregate of things wherever located and whether of any determinate location at all; the essence.

   “Photographs of cottagecore focuses on countrysides or forests.”

9. (countable, uncountable)particular parts of technical instruments or machines essential in function:
10. (abbreviation, alt-of, countable, ellipsis, historical, informal, uncountable)particular parts of technical instruments or machines essential in function:
11. (countable, uncountable)particular parts of technical instruments or machines essential in function:

    “I wanted to play a particular computer game, which required I buy a new computer, so while the game said it needed at least a dual-core processor, I wanted my computer to be a bit ahead of the curve, so I bought a quad-core.”

12. (countable, uncountable)particular parts of technical instruments or machines essential in function:

    “a floor panel with a Nomex honeycomb core”

13. (countable, uncountable)particular parts of technical instruments or machines essential in function:

    “In the engine room, the changing angle dropped the melted core to the deck. The hot mass attacked the steel deck first, burning through that, then the titanium of the hull. Five seconds later the engine room was vented to the sea.”

14. (countable, uncountable)particular parts of technical instruments or machines essential in function:

    “In a hollow-core design, neutrons escape from the core more readily, allowing more fissile material to be used (and thus allowing for a greater yield) while still keeping the core subcritical prior to detonation.”

15. (countable, uncountable)particular parts of technical instruments or machines essential in function:
16. (countable, uncountable)particular parts of technical instruments or machines essential in function:
17. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.
18. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.
19. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.

    “[the skin of the sheep] is clear from cores and jogs under the jaws.”

20. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.
21. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.
22. (countable, uncountable)Hence particular parts of a subject studied or examined by technical operations, likened by position and practical or structural robustness to kernels, cores in the general sense above.
23. (obsolete)A body of individuals; an assemblage.

    “He was in a core of people.”

24. A miner's underground working time or shift.
25. (alt-of, alternative, historical)Alternative form of cor: a former Hebrew and Phoenician unit of volume.
26. A deposit paid by the purchaser of a rebuilt part, to be refunded on return of a used, rebuildable part, or the returned rebuildable part itself.
27. (neologism)An aesthetic ending in the suffix -core, such as cottagecore, normcore, etc.

    “Some of the most popular "cores" at the moment—according to the Wiki's "trending pages" list—are cottage and goblin and trauma and angel. If the last one sounds appealing, you can participate by eating more meringues and buying a pet dove.”

    “The rise of micro-cores coincides with the rise of hyper-specific internet aesthetics. There's even an Aesthetics Wiki that chronicles all the possible cores online, including, but not limited to, bubblegumbitchcore, cottagecore, and fairycore.”

    “It's more than okay to let a microtrend be just that. Naming it as a "core" turns the clothing into a social media movement, and more often than not, the title is an overcomplication for rather basic color choices or fabric selections.”

    “The aesthetic makes a convincing case for finding joy in fashion and experimenting with personal style rather than chasing every new 'core' that comes along. It encourages real excitement about getting creative with the clothes you already have in your wardrobe and therein lies the thrill of it.”

28. (abbreviation, acronym, alt-of)Acronym of corporate responsibility.

adj

1. (not-comparable)Forming the most important or essential part.

   “Privately held businesses may hold assets or have charges to their financial statements which are not core to their main business activity.”

   “Private-equity nabobs bristle at being dubbed mere financiers. Piling debt onto companies’ balance-sheets is only a small part of what leveraged buy-outs are about, they insist. Improving the workings of the businesses they take over is just as core to their calling, if not more so. Much of their pleading is public-relations bluster.”

   “These lists cover important vocabulary from eight core subjects that students need to master during secondary education: Biology, Chemistry, Economics, English, Geology, History, Mathematics, and Physics.”

2. (not-comparable)Deeply and authentically involved in the culture surrounding the sport.

   “Our interest is not in core skaters such as young males and pro skaters but the voices of those on the periphery of the subculture.”

   “We had a segmentation strategy, where the small, independent core skate shops — the three hundred boutiques around the country who really created us — had a certain product line that was exclusive to them. […] We said to the core shops, you don't have to compete with the malls.”

   “[…] which provoked resistance among the 'core' snowboarders.”

verb

1. To remove the core of an apple or other fruit.
2. To cut or drill through the core of (something).
3. To extract a sample with a drill.

name

1. (US, abbreviation, acronym, alt-of)Acronym of Congress of Racial Equality.

   ““I start heading back up to 125th and people are all buzzing, saying the police have beat up and arrested some CORE people.””

2. (abbreviation, acronym, alt-of)Acronym of Center for Operations Research and Econometrics
3. (abbreviation, acronym, alt-of)Acronym of Consortium for Oceanographic Research and Education.
4. (abbreviation, acronym, alt-of)Acronym of Council on Rehabilitation Education.
5. (abbreviation, acronym, alt-of)Acronym of Computing Research and Education Association.
6. (Greek)The birth name of Persephone/Proserpina, the queen of the Underworld/Hades, and goddess of the seasons and of vegetation. She is the daughter of Zeus and Demeter, and the wife of Hades.
7. A female given name from Ancient Greek.
8. A surname.
9. A neighbourhood of San Diego, California, United States.
10. An unincorporated community in Monongalia County, West Virginia, United States.
11. (alt-of, obsolete)Obsolete form of Korah.