- (of a black hole or star) having a mass in the range of millions or billions of times that of the sun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for supermassive
The observable Universe contains around 100 billion large galaxies and a comparable number of supermassive black holes.The Black Hole Tango
Matthew R. Francis
November 24, 2014
Would Endurance even be able to fly that close to a supermassive black hole without being disintegrated by the force of it?Neil deGrasse Tyson Breaks Down ‘Interstellar’: Black Holes, Time Dilations, and Massive Waves
November 11, 2014
The same principle appears to hold for supermassive black holes too.
Unlike a forest sustaining a small population of predators, most galaxies have only one supermassive black hole.
Did supermassive black holes like the one in M87 get that way by eating stars?