1. One quintillionth (10^-18) of a second; one thousandth of a femtosecond

Derived forms: attoseconds

Type of: time unit, unit of time

Part of: femtosecond

Encyclopedia: Attosecond

• family Phyllocladaceae
• family Phyllostomatidae
• family Phyllostomidae
• family Phylloxeridae
• family Physeteridae
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• family Platycephalidae
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