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magnitude

From Wiktionary, the free dictionary

English

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Etymology

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FromLatinmagnitūdō(greatness, size),magnus +‎-tūdō.

Pronunciation

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Noun

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magnitude (countable anduncountable,pluralmagnitudes)

  1. (uncountable, countable) The absolute or relativesize,extent orimportance of something.
    • 2020 September 23, Paul Stephen, “East Coast upgrade: changes to schedule... but on schedule”, inRail, page31:
      And on a programme of works of thismagnitude, passengers will need to be mindful of the age-old maxim of 'no gain without pain'.
  2. (countable) Anorder of magnitude.
  3. (mathematics) Anumber, assigned to something, such that it may becompared to others numerically
  4. (mathematics) Of avector, thenorm, most commonly, thetwo-norm.
  5. (astronomy) Alogarithmic scale of brightness defined so that a difference of 5 magnitudes is a factor of 100.
    1. (uncountable) Theapparentbrightness of astar, with lower magnitudes being brighter;apparent magnitude
    2. (countable) A ratio of intensity expressed as a logarithm.
      • 2005, Andreas Eckartet al.,The Black Hole at the Center of the Milky Way[1],→ISBN, page71:
        Observations in the infrared domain allow one to penetrate the ~25-30magnitudes of extinction present at visible wavelengths.
  6. (seismology) A measure of theenergy released by anearthquake (e.g. on theRichter scale).

Derived terms

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Translations

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size, etc.
number
of a vector
apparent brighness of a star
energy of earthquake

Anagrams

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French

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Pronunciation

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Noun

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magnitude f (pluralmagnitudes)

  1. magnitude

Derived terms

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Further reading

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Galician

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Noun

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magnitude f (pluralmagnitudes)

  1. magnitude

Portuguese

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Etymology

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Learned borrowing fromLatinmagnitūdō(greatness, size). Bysurface analysis,magno +‎-itude.

Pronunciation

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  • (Brazil)IPA(key): /ma.ɡi.niˈtu.d͡ʒi/,/maɡ.niˈtu.d͡ʒi/
  • (Brazil)IPA(key): /ma.ɡi.niˈtu.d͡ʒi/,/maɡ.niˈtu.d͡ʒi/
    • (Southern Brazil)IPA(key): /maɡ.niˈtu.de/,/ma.ɡi.niˈtu.de/

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

Noun

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magnitude f (pluralmagnitudes)

  1. magnitude(size, extent or importance)
  2. (mathematics)magnitude(value assigned to a variable)
  3. (mathematics)magnitude(the norm of a vector)
  4. (astronomy)magnitude(apparent brightness of a star)
  5. (seismology)magnitude(energy of an earthquake)
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