billionth — English Dictionary

Adjective

1. The ordinal form of the number one billion.

   Usage

   • not-comparable

Noun

1. The person or thing in the billionth position.

2. One of a billion equal parts of a whole.

   Examples

   More examples (1)

   That is an extraordinary achievement for a spiky ball of genetic material coated in fatty chemicals called lipids, and which measures 80 billionths of a metre in diameter. Humanity has been brought low by a very humble assailant.

Adjective

1. the ordinal number of one billion in counting order

Noun

1. position 1,000,000,000 in a countable series of things

   Broader terms

   rank

2. one part in a billion equal parts

   Synonyms

   one-billionth

   Broader terms

   common fractionsimple fraction