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单词 magnitude
释义 mag·ni·tude
\ˈmagnəˌtüd, ˈmaig-, -nə.ˌtyüd\ noun
(-s)
Etymology: Middle English, from Latin magnitudo, from magnus great + -i- + -tudo -tude — more at much
1. obsolete : greatness of character or position : nobility
2.
 a.
  (1) : greatness of size or extent : vastness
   < cannot wage a war of such magnitude … without inaugurating a new epoch — A.N.Whitehead >
   < the magnitude of his literary output — H.W.H.Knott >
   < the magnitude of the shift away from centralized planning of all economic activity — Harry Schwartz >
  (2) : size 3a(1)
   < negative accelerations of any considerable magnitude in aircraft are seldom encountered — H.G.Armstrong >
   < able to operate only over distances of very small magnitude — G.W.Gray b. 1886 >
  (3) : quantity, number
   < the savings in amounts of metal … will be of dramatically significant magnitudesAmerican Fabrics >
 b. : volume, loudness
  < the magnitude of the total sound made … was astounding — William Beebe >
3. : the importance, quality, or caliber of something
 < a seaside curiosity of the first magnitude — Charles Gordon >
 < disappointing work by a writer of first magnitude — Richard Plant >
 < this is no bad test of the stature, or rather the magnitude, of a poet — David Daiches >
 < this court can be insensible neither to the magnitude nor delicacy of this question — John Marshall >
4. : a number representing the intrinsic or apparent brightness of a celestial body on a logarithmic scale in which a difference of one unit corresponds to the multiplication or division of the brightness of light by 2.512+ and a difference of five units corresponds to the multiplication or division by 100
 < a star of magnitude 3.0 is approximately 2.512 times brighter than a star of magnitude 4.0 >
 < a star of magnitude 1.0 is 100 times brighter than one of magnitude 6.0 >
— compare absolute magnitude, apparent magnitude, visual magnitude
5. : a number assigned to a quantity by means of which the quantity may be compared with other quantities of the same class
6. : the amount of energy released at the source of an earthquake or indicated by the intensity of an earthquake at one place and usually represented by a number on an arbitrary scale
Synonyms: see size
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更新时间:2024/11/13 19:10:34