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trillionth

trillionth

1 6.7
One part when something is divided into a trillion equal parts
  • noun
  • /ˈtrɪljənθ/
translation icon : trillonésimo
  • The computer processes data in trillionths of a second, making it incredibly fast.
  • trillionth of a second

That means millionths of a second or trillionths of a second.

Examples

  • And all those forces had established their independence by the time the universe was a mere trillionth (10^-12) of a second old.

    Academic text (2003)
  • And in a trillionth of a second... ...it expanded exponentially into what became the universe we know.

  • To recreate conditions last seen a trillionth of a second after the Big Bang, the beginning of the universe 13 billion years ago.

  • We'll recreate the conditions that existed one trillionth of a second after the Big Bang.

  • Today we watch the universe in wave bands from the radio (wavelengths up to about 10 meters) to gamma rays (a trillionth of a meter).

    Academic text (1996)
  • Beryllium-16 is an unbound, unstable isotope with 4 protons and 12 neutrons that decays in less than a trillionth of a second.

    Blog text (17)
  • It would not, however, have been an audible sound to any eared creatures, could they have existed so far back in time, before even the stars were born: a vast object like the Universe makes a very low sound indeed—about one trillionth of a hertz.

    Blog text (22)
  • Scientists can measure events that occur in less than a trillionth of a second during experiments.

  • A picosecond is one trillionth of a second, which is extremely brief.

Synonyms

one-trillionth
vstrillionth
8.9

One part out of a trillion equal parts

is the same meaning but written without a hyphen

Compounds

One part out of a trillion equal parts

How Small

trillionth
1 6.7
billionth
2 4.3
millionth
  • Specialized
6 2.8
thousandth
5 2.3
hundredth
7 1.0
tenth
58 1.0

Surface Forms

trillionth singular
trillionths plural

Morphology

trillionth = trillion (transparent) = trillion + th

The noun meaning 'one part in a trillion' is formed by applying the standard ordinal/fractional suffix '-th' to the cardinal 'trillion', so the relation is directly derivable.

Etymology

Trillionth comes from trillion (a very large number, like million or billion) plus the ending -th, which turns a number into 'one part in' that many parts, just like hundredth is one part in a hundred. So, a trillionth means one part in a trillion equal parts.