n.
1.the center of an object
2.a small group of indispensable persons or things
3.the central part of the Earth
4.the choicest or most essential or most vital part of some idea or experience
5.a cylindrical sample of soil or rock obtained with a hollow drill
6.an organization founded by James Leonard Farmer in 1942 to work for racial equality
7.the central meaning or theme of a speech or literary work
8.the chamber of a nuclear reactor containing the fissile material where the reaction takes place
9.a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil core v.
1.remove the core or center from
Idiom of the Day
make a nuisance of oneself
to be a constant bother
I did not phone the apartment manager about the sink because I did not want to make a nuisance of myself.