| 单词 | magnitude |
| 释义 | Word Frequency magnitude(ˈmæɡnɪˌtjuːd) noun 1. relative importance or significance a problem of the first magnitude 2. relative size or extent the magnitude of the explosion 3. mathematics a number assigned to a quantity, such as weight, and used as a basis of comparison for the measurement of similar quantities 4. Also called: apparent magnitude astronomy the apparent brightness of a celestial body expressed on a numerical scale on which bright stars have a low value. Values are measured by eye (visual magnitude) or more accurately by photometric or photographic methods, and range from –26.7 (the sun), through 1.5 (Sirius), down to about +30. Each integral value represents a brightness 2.512 times greater than the next highest integral value See also absolute magnitude, visual magnitude 5. Also called: earthquake magnitude geology a measure of the size of an earthquake based on the quantity of energy released: specified on the Richter scale Richter scale Derived forms magnitudinous (ˌmagniˈtudinous) adjective Word origin C14: from Latin magnitūdō size, from magnus great |
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