Meaning of magnitude | Babel Free

Definitions

1. The absolute or relative size, extent or importance of something.
   countable, uncountable
2. of the first magnitude, of greatest significance.
3. An order of magnitude.
   countable
4. A star’s brightness measured as either absolute magnitude or apparent magnitude. The latter states brightness in the sky on a scale from -26.8 (the Sun, brightest) to +25 (the faintest).
5. A number, assigned to something, such that it may be compared to others numerically
   countable, uncountable
6. magnitud.
7. Of a vector, the norm, most commonly, the two-norm.
   countable, uncountable
8. Greatness of rank or position: "such duties as were expected of a landowner of his magnitude" (Anthony Powell).
9. A logarithmic scale of brightness defined so that a difference of 5 magnitudes is a factor of 100.
   uncountable
10. The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude
    uncountable
11. A ratio of intensity expressed as a logarithm.
    countable
12. Astronomy a. The brightness of a celestial body on a numerical scale for which brighter objects have smaller values. Differences in magnitude are based on a logarithmic scale that matches the response of the human eye to differences in brightness so that a decrease of one magnitude represents an increase in apparent brightness by a factor of 2.512. Also called apparent magnitude.
    Astronomy
13. A measure of the energy released by an earthquake (e.g. on the Richter scale).
    countable, uncountable
14. Mathematics a. A number assigned to a quantity so that it may be compared with other quantities.
    Mathematics
15. Geology A measure of the amount of energy released by an earthquake, as indicated on the Richter scale.
    Geology
16. relative importance or significance: a problem of the first magnitude.
17. relative size or extent: the magnitude of the explosion.
18. (Mathematics) maths a number assigned to a quantity, such as weight, and used as a basis of comparison for the measurement of similar quantities
    maths

Equivalents

Examples

“And on a programme of works of this magnitude, passengers will need to be mindful of the age-old maxim of 'no gain without pain'.”

“Observations in the infrared domain allow one to penetrate the ~25-30 magnitudes of extinction present at visible wavelengths.”

CEFR level