billionth

Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

English numbers (edit)
1,000,000,000
    Cardinal: billion, milliard, thousand million
    Ordinal: billionth, milliardth
    Multiplier: billionfold, milliardfold
English numbers (edit)
1,000,000,000,000
    Cardinal: trillion, billion
    Ordinal: trillionth, billionth
    Multiplier: trillionfold, billionfold

Etymology[edit]

billion +‎ -th

Pronunciation[edit]

  • IPA(key): /ˈbɪl.i.ənθ/
    • (file)

Adjective[edit]

billionth (not comparable)

  1. The ordinal form of the number one billion.

Noun[edit]

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[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.