quadrillion
noun
a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
quadrillionth
-
a word derived from
quadrillion.
-
a word derived from
quadrillion.
quadrillionnouna cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The collisions briefly create tiny droplets of primordial matter that usually survive for less than a quadrillionth of a second.
From Science Daily ● Oct. 6, 2026
A femtosecond is one quadrillionth of a second -- one second holds about eight times more femtoseconds than all the hours that have passed since the universe began.
From Science Daily ● Mar. 6, 2026
His work centers on miniaturizing mode-lock lasers -- a unique laser that emits a train of ultrashort, coherent light pulses in femtosecond intervals, which is an astonishing quadrillionth of a second.
From Science Daily ● Nov. 9, 2023
These samples were blasted with specialized white light lasers for just one quadrillionth of a second, but this was enough to illuminate thousands of tiny black carbon molecules.
From Salon ● Oct. 13, 2022
Modern radio telescopes are exquisitely sensitive; a distant quasar is so faint that its detected radiation amounts perhaps to a quadrillionth of a watt.
From "Cosmos" by Carl Sagan
