one-quadrillionth
Definition
Noun: - One part in a quadrillion equal parts: A unit of measurement representing one of a quadrillion (1,000,000,000,000,000) identical parts of a whole. It is an extremely small fractional quantity.
Usage
This term is used primarily in scientific, mathematical, or technical contexts to denote an infinitesimally small proportion or a precise measurement scale. - The detector can measure concentrations as low as one-quadrillionth of a gram per liter. - In this model, the probability of that event is estimated to be one-quadrillionth.
Advanced Usage
- Used to form compound nouns specifying a unit, particularly with units of time or length in scientific notation (e.g., one-quadrillionth of a second, though more commonly expressed as a femtosecond).
- Some atomic processes occur on a scale of one-quadrillionth of a second.
Variants and Related Words
- Quadrillionth (noun, adjective): The ordinal form for the position corresponding to 1,000,000,000,000,000; also used to mean one of a quadrillion equal parts.
- He finished in quadrillionth place. (ordinal)
- A quadrillionth of the total volume. (fractional)
- Femtosecond (noun): A unit of time equal to one quadrillionth (10^-15) of a second, which is the more common technical term.
Synonyms
- A quadrillionth part
- 10^-15 (in scientific notation)
Noun
-
one part in a quadrillion equal parts
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