- Also called visual magnitude, apparent magnitude. the brightness of a star or other celestial body as viewed by the unaided eye and expressed by a mathematical ratio of 2.512: a star of the first magnitude is approximately 2½ times as bright as one of the second magnitude and 100 times brighter than one of the sixth magnitude. Only stars of the sixth magnitude or brighter can be seen with the unaided eye.
- absolute magnitude.
Origin of magnitude
Examples from the Web for magnitude
Unlike Maryland, national costs for institutionalization as opposed to HCBS do not differ by an order of magnitude.Medicaid Will Give You Money for At-Home Care, but You Might Wait Years|Elizabeth Picciuto|December 2, 2014|DAILY BEAST
A subject of this magnitude requires national consensus-building.
Obama appeared acutely aware of the magnitude of the situation, and the urgency with which immediate action is needed.
A pair of magnitude 4-5 earthquakes in the Los Angeles basin.
Over the month before that, there were 574 earthquakes globally of magnitude 4.5 or greater.
"Volume," except in its application to books, now carries with it an idea of magnitude.The Works of Alexander Pope, Volume 1|Alexander Pope
You can't conceive there should be any effect of magnitude produced in the interior, however it has been vaulted or decorated.Mornings in Florence|John Ruskin
Events were soon to prove that the magnitude and imminence of the danger were even greater than he apprehended.The Life of Isaac Ingalls Stevens, Volume II (of 2)|Hazard Stevens
It has often been observed that a building, in order to show its magnitude, must be seen all at once.The Seven Lamps of Architecture|John Ruskin
It may be a very small circumstance, but it is the direction and not the magnitude which is to be taken into consideration.The Edinburgh Lectures on Mental Science|Thomas Troward
British Dictionary definitions for magnitude
Word Origin for magnitude
Word Origin and History for magnitude
c.1400, "greatness of size or character," from Latin magnitudo "greatness, bulk, size," from magnus "great" (see magnate) + -tudo, suffix forming abstract nouns from adjectives and participles (see -tude). Meaning "size, extent" is from early 15c. Of stars, "brightness," from 1640s.