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billion |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.03 sec. |
billionOne thousand times one million, which is 1, followed by nine zeros, or 10 to the 9th power. See space/time. billion 1. one thousand million: it is written as 1 000 000 000 or 109 2. (formerly, in Britain) one million million: it is written as 1 000 000 000 000 or 1012 billion [′bil·yən] (mathematics) The number 109. In British usage, the number 1012. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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To comprehend the meaning of these figures, it is necessary to observe that a quintillion is to a billion as a billion is to unity; in other words, there are as many billions in a quintillion as there are units in a billion. If her population was a billion, and was increasing twenty millions a year, in twenty-five years it would be a billion and a half--equal to the total population of the world in Why, I should have been laughed at for a billion miles around. |
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