Symbol a. A prefix used in the metric system to denote 10−18. For example, 10−18 second=1 attosecond (as).
Prefix used with SI units to denote multiplication by 10−18. Abbreviated as a.
A prefix used in the metric system to denote 10−18. For example, 10−18 second = 1 attosecond (as).
Symbol a. A prefix used in the metric system to denote 10−18. For example, 10−18 second = 1 attosecond (as).
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