amerikai:
brit:
1. The absolute or relative size, extent or importance of something.
2. An order of magnitude.
3. A number, assigned to something, such that it may be compared to others numerically
4. Of a vector, the norm, most commonly, the two-norm.
5. A logarithmic scale of brightness defined so that a difference of 5 magnitudes is a factor of 100.
6. A measure of the energy released by an earthquake (e.g. on the Richter scale).