1. magnetic dip (physics) the angle that a magnetic needle makes with the plane of the horizon
  2. magnetic tape memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information
  3. magnetic dipole a dipole with opposing magnetic poles
  4. magnetic disk (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
  5. magnetic disc (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
  6. magnetic head an electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface and later retrieved
  7. magnetic stripe a short strip of magnetic tape attached to a credit card or debit card; it contains data that will tell a reading device who you are and what your account number is, etc.
  8. magnetic medium any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information
  9. magnetic of or relating to or caused by attraction for iron
  10. magnetic mine (nautical) a marine mine that is detonated by a mechanism that responds to magnetic material (as the steel hull of a ship)
  11. magnetically by the use of magnetism
  12. magnetic ink an ink that contains particles of a magnetic substance whose presence can be detected by magnetic sensors
  13. magnetized having the properties of a magnet
  14. magnetised having the properties of a magnet
  15. magnetics the branch of science that studies magnetism
  16. magnitude the property of relative size or extent
  17. magnetic pole either of two points where the lines of force of the Earth's magnetic field are vertical
  18. magnetic needle a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole
  19. magnetic core (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories
  20. magnetic compass compass based on an indicator (as a magnetic needle) that points to the magnetic north