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Wordage.info / core

Exact Match:

core
a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
the chamber of a nuclear reactor containing the fissile material where the reaction takes place
a small group of indispensable persons or things; "five periodicals make up the core of their publishing program"
the center of an object; "the ball has a titanium core"
the central part of the Earth
a cylindrical sample of soil or rock obtained with a hollow drill
remove the core or center from; "core an apple"

Synonyms:

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