- The zero meridian (0°), used as a reference line from which longitude east and west is measured. It passes through Greenwich, England.本初子午线：通过英国格林威治的零度（0°）子午线，用作参考经线，从本初子午线开始分别向东和向西计算全世界的地理经度
- magnetic dip
- magnetic disk
- magnetic equator
- magnetic field
- magnetic field strength
- magnetic flux
- magnetic flux density
- magnetic force
- magnetic head
- magnetic inclination
- magnetic induction
- magnetic intensity
- magnetic levitation
- magnetic lines of force
- magnetic meridian
- magnetic mine
- magnetic moment
- magnetic monopole
- magnetic needle
- magnetic north
- magnetic permeability
- magnetic pole
- magnetic pyrites
- magnetic recording
- magnetic resonance