Magnitude simply means “how much”. magnitude meaning: 1. the large size or importance of something: 2. the large size or importance of something: 3…. How to use magnitude in a sentence. magnitude definition: Magnitude is defined as large in size or very important. (noun) An example of magnitude is the depth of the Grand Canyon. tude (măg′nĭ-to͞od′, -tyo͞od′) n. 1. a. Greatness of rank or position: "such duties as were expected of a landowner of his magnitude" (Anthony Powell). In astronomy, magnitude is a unitless measure of the brightness of an object in a defined passband, often in the visible or infrared spectrum, but sometimes across all wavelengths. An imprecise but systematic determination of the magnitude of objects was introduced in ancient times by Hipparchus..

Learn more. Magnitude definition is - great size or extent. A scalar is a number that only has a magnitude or an amount. In mathematics, magnitude is the size of a mathematical object, a property which determines whether the object is larger or smaller than other objects of the same kind.More formally, an object's magnitude is the displayed result of an ordering (or ranking) of the class of objects to which it belongs. The magnitude of a number (also called its absolute value) is its distance from zero, so • the magnitude of 6 is 6 • the magnitude of −6 is also 6 The magnitude of a vector is its length (ignoring direction). Definition of absolute magnitude in the Definitions.net dictionary. b. Greatness in size or extent: The magnitude of the flood was impossible to comprehend. Magnitude is how much the earth moved during an earthquake and is determined by the distance the marking device moves above and below the straight line on a seismograph. Meaning of absolute magnitude. Information and translations of absolute magnitude in the most comprehensive dictionary definitions resource on the web. Play with a vector below: What does absolute magnitude mean? In physics, we use many kinds of numbers, two of which are scalars and vectors. An example of magnitude is … The size of something. c. Greatness in significance or influence: was shocked by the magnitude of the crisis.