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

• muscleman
• muscly
• Muscoidea
• muscovado
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• Muscovy
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• musculus abductor digiti minimi pedis
• musculus abductor hallucis