a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil | the fatty network of connective tissue that fills the cavities of bones |
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 |
(computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories | large elongated squash with creamy to deep green skins |
the choicest or most essential or most vital part of some idea or experience | very tender and very nutritious tissue from marrowbones |
the central meaning or theme of a speech or literary work | any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh |
a small group of indispensable persons or things | |
the center of an object | |
the central part of the Earth | |
a cylindrical sample of soil or rock obtained with a hollow drill | |