a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil | a playing card in the major suit that has one or more red hearts on it |
the chamber of a nuclear reactor containing the fissile material where the reaction takes place | the courage to carry on |
(computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories | an inclination or tendency of a certain kind |
the choicest or most essential or most vital part of some idea or experience | the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body |
the central meaning or theme of a speech or literary work | the locus of feelings and intuitions |
a small group of indispensable persons or things | the choicest or most essential or most vital part of some idea or experience |
the center of an object | a positive feeling of liking |
the central part of the Earth | a firm rather dry variety meat (usually beef or veal) |
a cylindrical sample of soil or rock obtained with a hollow drill | an area that is approximately central within some larger region |
| a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines |