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trillionth

  • a word derived from trillion.
    trillion
    noun
    a cardinal number represented in the U.S. by 1 followed by 12 zeros, and in Great Britain by 1 followed by 18 zeros.

Example Sentences

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This approach relies on cascaded second-harmonic generation within nonlinear crystals, producing UV-C pulses that last only femtoseconds, less than 1 trillionth of a second.

From Science Daily Jan. 7, 2026

And it needed the world’s biggest atom smasher CERN’s Large Hadron Collider to produce the extreme surge of energies simulating those 1 trillionth to 2 trillionths of a second after the Big Bang.

From Seattle Times Apr. 9, 2024

The Big Bang theory postulates that the universe was inflated from a microscopic speck in a trillionth of a trillionth of a trillionth of a second, at a temperature of trillions degrees centigrade.

From Washington Post Jan. 28, 2023

The pangram from yesterday’s Spelling Bee was trillionth.

From New York Times Dec. 31, 2022

According to Guth’s theory, at one ten-millionth of a trillionth of a trillionth of a trillionth of a second, gravity emerged.

From "A Short History of Nearly Everything" by Bill Bryson

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