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core

1 of 4

noun (1)

ˈkȯr How to pronounce core (audio)
plural cores
often attributive
1
: a central and often foundational part usually distinct from the enveloping part by a difference in nature
the core of the city
: such as
a
: the usually inedible central part of some fruits (such as a pineapple)
especially : the papery or leathery carpels composing the ripened ovary in a pome fruit (such as an apple)
b
: the muscles of the mid-region of the torso
Your core is composed of the muscles that stabilize and move your pelvis, lower back, hips, and trunk. Adele Jackson-Gibson
core muscles/strength
core exercises
c
: the place in a nuclear reactor where fission (see fission entry 1 sense 3) occurs
d
: an arrangement of a course of studies that combines under basic topics material from subjects conventionally separated and aims to provide a common background for all students
core curriculum
e
: the portion of a foundry mold that shapes the interior of a hollow casting
f
: a vertical space (as for elevator shafts, stairways, or plumbing apparatus) in a multistory building
g(1)
: a computer memory consisting of an array of cores strung on fine wires
broadly : the internal memory of a computer
(2)
: a tiny doughnut-shaped piece of magnetic material (such as ferrite) used in computer memories
(3)
: a mass of iron serving to concentrate and intensify the magnetic field resulting from a current in a surrounding coil
h
: the central part of a celestial body (such as the earth or sun) usually having different physical properties from the surrounding parts
i
: a nodule of stone (such as flint or obsidian) from which flakes have been struck for making implements
j
: the conducting wire with its insulation in an electric cable
2
a
: a basic, essential, or enduring part (as of an individual, a class, or an entity)
the staff had a core of experts
the core of her beliefs
b
: the essential meaning : gist
the core of the argument
c
: the inmost or most intimate part
honest to the core
3
: a part (such as a thin cylinder of material) removed from the interior of a mass especially to determine composition

core

2 of 4

verb

cored; coring

transitive verb

: to remove a core (see core entry 1 sense 1a) from
core an apple
corer noun

core

3 of 4

noun (2)

chiefly Scotland
: a group of people

CORE

4 of 4

abbreviation

ˈkȯr How to pronounce CORE (audio)
Congress of Racial Equality

Synonyms

Noun (1)

Word History

Etymology

Noun (1)

Middle English, of obscure origin

Verb

Middle English coren, derivative of core core entry 1

Noun (2)

perhaps by respelling of Middle English chore "chorus, company," borrowed from Latin chorus — more at chorus entry 1

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined above

Noun (2)

1622, in the meaning defined above

Time Traveler
The first known use of core was in the 14th century

Phrases Containing core

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