one-quintillionth
- noun
- /wʌn kwɪnˈtɪljənθ/
- Specialized
- Even one-quintillionth of a second can be significant in particle physics experiments.
Examples
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The amount of hydrogen in that tiny droplet is less than one-quintillionth of the total Earth's supply.
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A one-quintillionth of a second is incredibly fast.
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Her chances of winning the lottery were about one-quintillionth, making it almost impossible.
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The probability of winning the lottery is one in a one-quintillionth.
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Even one-quintillionth of a second can be significant in particle physics experiments.
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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
One of 1,000,000,000,000,000,000 equal parts
How Small
- Specialized
- Specialized
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.