The middle part, that can be clearly discerned from the enveloping part.
To remove the core (for example of a fruit).
The central somewhat harder part that surrounds the seeds in some fruits, such as apples.
a rod of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
the region of a nuclear reactor containing the fissile material where the reaction takes place
the center of an object; "do not eat the apple core"
a cylindrical sample of soil or rock obtained with a hollow drill
the central part of the earth
remove the core or center from; "core an apple"
a small group of indispensable persons or things; "five periodicals make up the core of their publishing program"
the central meaning or theme of a speech or literary work
the choicest or most essential or most vital part of some idea or experience: "the gist of the prosecutor's argument"; "the nub of the story"
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
the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor''s argument"; "the heart and soul of the Republican Party"; "the nub of the story"
an organization founded by James Leonard Farmer in 1942 to work for racial equality
the center of an object; "the ball has a titanium core"
(computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories
the choicest or most essential or most vital part of some idea or experience