petagram

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See also: peta-gram

English[edit]

Etymology[edit]

peta- +‎ gram

Noun[edit]

petagram (plural petagrams)

(metrology) An SI unit of mass equal to 10¹⁵ grams. Symbol: Pg
Sometimes used in Carbon Dioxide numbers, it is equivalent to Metric Gigatons (Giga) 10⁹ x (Ton) 10³ x (kg) 10³ = 10¹⁵

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