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one-quintillionth

one-quintillionth

9.9
A very tiny part equal to one divided by 1,000,000,000,000,000,000
  • noun
  • /wʌn kwɪnˈtɪljənθ/
  • Specialized
translation icon : un quintillón
  • Even one-quintillionth of a second can be significant in particle physics experiments.

Examples

  • The amount of hydrogen in that tiny droplet is less than one-quintillionth of the total Earth's supply.

  • A one-quintillionth of a second is incredibly fast.

  • Her chances of winning the lottery were about one-quintillionth, making it almost impossible.

  • The probability of winning the lottery is one in a one-quintillionth.

  • Even one-quintillionth of a second can be significant in particle physics experiments.

  • The amount of hydrogen in that tiny droplet is less than one-quintillionth of the total Earth's supply.

  • Her chances of winning the lottery were about one-quintillionth, making it almost impossible.

Synonyms

quintillionth
vsone-quintillionth
9.9

One of 1,000,000,000,000,000,000 equal parts

is only the fractional value one divided by 1,000,000,000,000,000,000

How Small

one-quintillionth
  • Specialized
9.9
one-quadrillionth
  • Specialized
9.9
one
1.0

Surface Forms

Morphology

one-quintillionth = quintillionth (transparent) = one + quintillion + th

The construction is a straightforward numeric formation: 'one' + the ordinal/fraction 'quintillionth'.

Etymology

One-quintillionth breaks into one- ('one') and quint- ('five'), the same root you see in quintet or quintuple, plus -th to show a part. A quintillion is a very large number (1,000,000,000,000,000,000), so a one-quintillionth is one of those many equal parts — that is, a very tiny amount.