quadrillion

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quadrillion

1. (in Britain) the number represented as one followed by 24 zeros (1024)
2. (in the US and Canada) the number represented as one followed by 15 zeros (1015)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

quadrillion

[kwə′dril·yən]
(mathematics)
The number 1015.
In British and German usage, the number 1024.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

quadrillion

One thousand times one trillion, which is 1, followed by 15 zeros, or 10 to the 15th power. See space/time.
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References in periodicals archive ?
"At first I thought that I owed quadrillions. It was quite a big surprise."
Magnetic resonance force microscopy (MRFM) applies the same principles used by hospital magnetic resonance imaging machines, which provide three-dimensional views of internal soft tissues by detecting the spins of quadrillions of atomic nuclei at a time.
1 spot with 1.105 petaflop/s (quadrillions of floating point operations per second) is the Roadrunner system at DOE's Los Alamos National Laboratory (LANL) which was built by IBM and in June 2008 became the first system ever to break the petaflop/s Linpack barrier.