billion years

English - English

Definition of billion years in English English dictionary

b.y

Hyphenation

bil·lion years

Turkish pronunciation

bîlyın yırz

Pronunciation

/ˈbəlyən yərz/ /ˈbɪljən jɜrz/

Videos

... Over the next two billion years, life becomes more complex. ...

... By 3.8 billion years ago, ...