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
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
chiefly Scotland
: a group of people
Congress of Racial Equality
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Merriam-Webster unabridged
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