English Online Dictionary. What means **magnitude**? What does **magnitude** mean?

## English

### Etymology

From Latin *magnitūdō* (“greatness, size”), *magnus* + *-tūdō*.

### Pronunciation

- IPA
^{(key)}: /ˈmæɡnɪtjuːd/

### Noun

**magnitude** (*countable and uncountable*, *plural* **magnitudes**)

- (uncountable, countable) The absolute or relative size, extent or importance of something.
- (countable) An order of magnitude.
- (mathematics) A number, assigned to something, such that it may be compared to others numerically
- (mathematics) Of a vector, the norm, most commonly, the two-norm.
- (astronomy) A logarithmic scale of brightness defined so that a difference of 5 magnitudes is a factor of 100.
- (uncountable) The apparent brightness of a star, with lower magnitudes being brighter; apparent magnitude
- (countable) A ratio of intensity expressed as a logarithm.

- (seismology) A measure of the energy released by an earthquake (e.g. on the Richter scale).

#### Derived terms

#### Translations

### Anagrams

- gamnitude

## French

### Pronunciation

- IPA
^{(key)}: /ma.ɲi.tyd/

### Noun

**magnitude** f (*plural* **magnitudes**)

- magnitude

#### Derived terms

- magnitude absolue
- magnitude apparente

### Further reading

- “magnitude”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Galician

### Noun

**magnitude** f (*plural* **magnitudes**)

- magnitude

## Portuguese

### Etymology

Borrowed from Latin *magnitūdō* (“greatness, size”). By surface analysis, *magno* + *-itude*.

### Pronunciation

- Rhymes: (Brazil) -ud͡ʒi, (Portugal) -udɨ
- Hyphenation: mag‧ni‧tu‧de

### Noun

**magnitude** f (*plural* **magnitudes**)

- magnitude (size, extent or importance)
- (mathematics) magnitude (value assigned to a variable)
- (mathematics) magnitude (the norm of a vector)
- (astronomy) magnitude (apparent brightness of a star)
- (seismology) magnitude (energy of an earthquake)