What does billionth mean?
The term 'billionth' refers to one of a billion equal parts into which something is divided. It is often used in scientific and technical contexts to describe extremely small quantities. For example, the company's billionth customer was celebrated with a special promotion. The word 'billionth' can also be used to describe a very small fraction of something, such as a billionth of a second. In this sense, it is often used in physics and engineering to describe time intervals or distances. The term 'billionth' is often used interchangeably with 'one billionth' or 'a billionth part', although some sources may distinguish between these terms. Overall, the word 'billionth' is a useful term for describing extremely small quantities and is commonly used in a variety of contexts.
adjective
One of a billion equal parts into which something is divided, or one part in a billion.
- 1. One of a billion equal parts into which something is divided, or one part in a billion.
"The company's billionth customer was celebrated with a special promotion."
"The company's billionth customer was celebrated with a special promotion."
"The scientist measured the time interval between two events to be a billionth of a second."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of billionth
The word 'billionth' is derived from the word 'billion', which is itself derived from the French word 'milliard', meaning 'a million million'. The word 'billionth' has been in use since the 17th century, when it was first used to describe extremely large quantities.
Usage notes
The word 'billionth' is often used in formal and technical contexts, such as science and engineering. It is also used in informal contexts, such as business and finance, to describe extremely small quantities. The word 'billionth' can be used interchangeably with 'one billionth' or 'a billionth part', although some sources may distinguish between these terms.