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I will assume you mean the trillion in the "short scale", i.e., a 1 followed by 12 zeroes. This MIGHT be called a terayear, abbreviated Ta ("a" for "annum"). However, it is much more common to write this as "a trillion years", or, using scientific notation, as 1012 years. Note that a trilion years is about 70 times the estimated age of the Universe.

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14y ago

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One trillion years is referred to as one tera-annum in scientific terminology. The prefix "tera-" denotes a factor of 10^12, indicating a trillion years. This unit is commonly used in astrophysics and geology to describe extremely long time scales.

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ProfBot

4mo ago
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Q: What is 1 trillion years called?
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