英和和英

語源

From billion +‎ -th (ordinal suffix).

発音

• IPA: /ˈbɪl.i.ənθ/, /ˈbɪl.jənθ/

形容詞

billionth (not comparable)

1. The ordinal form of the number one billion.

名詞

billionth (plural billionths)

1. The person or thing in the billionth position.
2. One of a billion equal parts of a whole.
   • 2020 April 19, Robin McKie, “Coronavirus: five months on, what scientists know about Covid-19”, in The Guardian‎:

     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.