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qua·sar(kwā′zär′, -sär′, -zər, -sər)
A compact, extremely bright celestial object whose power output can be hundreds to several thousand times that of the entire Milky Way galaxy. Quasars are among the most distant objects in the universe and are generally considered to be a form of active galactic nucleus.
[From earlier quas(i-stell)ar (radio source).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Celestial Objects) any of a class of extragalactic objects that emit an immense amount of energy in the form of light, infrared radiation, etc, from a compact source. They are extremely distant and their energy generation is thought to involve a supermassive black hole located in the centre of a galaxy
[C20: quas(i-stell)ar (object)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
qua•sar(ˈkweɪ zɑr, -zər, -sɑr, -sər)
any of numerous starlike extragalactic objects that may be the most distant and brightest objects in the universe.
[1964; quas(i-stell)ar, in quasi-stellar radio source, the first type of quasar discovered]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
An extremely distant, compact, star-like celestial object. The power output of a quasar is several thousand times that of the Milky Way galaxy.
Did You Know? "The universe is not only stranger than we imagine," Albert Einstein said. "It is stranger than we can imagine." In the 1960s, astronomers found some very strange objects that we now call quasars in the far reaches of the universe. A quasar is like a far-off floodlight. It appears to be an extremely distant star putting out huge amounts of energy. In fact, just one of these objects can be a trillion times brighter than the sun. All of the radiation that a quasar gives off comes from a small area at its center, and many astronomers believe that the source of the energy is an enormous black hole rotating at the center of a young galaxy. Quasars are among the most distant celestial objects known. Some are more than ten billion light-years away, meaning their radiation has taken ten billion years to reach us. So when we look at quasars, we're observing these objects as they were billions of years ago, and we're able to see part of the early history of the universe.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||quasar - a starlike object that may send out radio waves and other forms of energy; many have large red shifts|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
كْوازار: جِسْم نَجْمي
quasar[ˈkweɪzɑːʳ] N → cuasar m, quásar m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
quasar[ˈkweɪzɑːr] n → quasar m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
n → Quasar m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
quasar[ˈkweɪzɑːʳ] n (Astron) → quasar f inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
a star-like object which gives out light and radio waves. kwasar كْوازار: جِسْم نَجْمي квазар quasar kvazar der Quasar kvasar κβάζαρquasar kvasar دور اختر kvasaari quasar קְווֵיזָר रश्मियों का सुदूर स्रोत kvazar kvazár kuasar dulstirni, kvasi quasar 準星 준항성체 kvazaras kvazārs kuasar quasarkvasar kwazar ځلاندى او پړكيدونكى ډبرې quasar cuasar квазар kvasar kvazar kvazar kvasar กลุ่มวัตถุซึ่งส่งแสงคล้ายดวงดาว kuazar 類星體 квазар بعض ستارہ نما اجرام میں سے کوئی جن سے اکثر شدید ریڈیائی لہریں نکلتی ہیں chuẩn tinh 类星体
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.