That were present less than a billionth of a second after the universe began - जो उपस्थित थी, संसार की शुरुआत के एक सेकंड के अरब भाग में -
2.
Size Matters : A nanometre-a billionth of a metre or about one 80,000th the diameter of a human hair-that is the smallest the biggest breakthrough of the year can get . आकार का महत्वः वर्ष की सबसे बड़ी कामयाबी एक नैनोमीटर-एक मीटर का अरबवां या एक बाल की मोटाई का 80,000वां हिस्सा-हो सकती है .
Meaning
one part in a billion equal parts Synonyms: one-billionth,
position 1,000,000,000 in a countable series of things
the ordinal number of one billion in counting order
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