Billionth
/ˈbɪl.i.ənθ/ adj, noun
adj, noun ·Uncommon ·Advanced level
Definitions
Noun
- 1 The person or thing in the billionth position.
- 2 one part in a billion equal parts wordnet
- 3 One of a billion equal parts of a whole.
"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."
- 4 position 1,000,000,000 in a countable series of things wordnet
Adjective
- 1 The ordinal form of the number one billion. not-comparable
Adjective
- 1 the ordinal number of one billion in counting order wordnet
Synonyms
All synonymsExample
More examples"Chilling atoms to within one ten billionth of a degree above 0 Kelvin causes them to slow down significantly, making them easier to study."
Etymology
From billion + -th (ordinal suffix).