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trillion
(redirected from trillionth)

   Also found in: Dictionary/thesaurus, Wikipedia 0.10 sec.

One thousand times one billion, which is 1, followed by 12 zeros, or 10 to the 12th power. See space/time.


(mathematics)trillion - In Britain, France, and Germany, 10^18 or a million cubed.

In the USA and Canada, 10^12.



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The sound waves passing through that sensor can then be compared with an uncoated control crystal: Differences in the waves mean the chip has picked up trace amounts--as little as a few trillionths of a gram--of the target substance.
Tools developed over the last three hundred years allow us to precisely measure quantities such as the wavelength of luminous and radiant waves of the order of 400 to 700 nanometers propagating at a speed of 299,972 km/sec; they can find trace elements of the order of one trillionth of a gram in the farthest reaches of space; they can determine with precision signals emerging from a radio wave returning from some distant star.
A zeptogram is a few billionths of a trillionth of a gram.
 
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