ADJECTIVE
- the ordinal number of one quadrillion in counting order
NOUN
- one part in a quadrillion equal parts
How To Use quadrillionth In A Sentence
- Pulses of such short duration - lasting some 80 femtoseconds, or 80 quadrillionths of a second - shine a lightning-fast strobe light on the swift activities of atoms and molecules.
- At the other end of the spectrum, a signal of 10 quadrillionths, or 0.00000000000001, of a watt (a quadrillion is a million billion) could be enough to complete a call. Hidden Formulas Send Mixed Signals on Cellphones