a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil | something (a person or object or scene) selected by an artist or photographer for graphic representation |
the chamber of a nuclear reactor containing the fissile material where the reaction takes place | the sum or range of what has been perceived, discovered, or learned |
(computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories | content communicating a message; what something is about |
the choicest or most essential or most vital part of some idea or experience | (usually plural) everything that is included in a collection and that is held or included in something |
the central meaning or theme of a speech or literary work | the amount that can be contained |
a small group of indispensable persons or things | the proportion of a substance that is contained in a mixture or alloy etc. |
the center of an object | the state of being contented with your situation in life |
the central part of the Earth | |
a cylindrical sample of soil or rock obtained with a hollow drill | |