What is another word for attosecond?
Pronunciation: [ɐtˈə͡ʊskɒnd] (IPA) 
Attosecond is a term used to describe a very short period of time, equal to one quintillionth of a second. However, there are other similar terms that are often used interchangeably with attosecond. These include zeptosecond, yoctosecond, femtosecond, and picosecond. Zeptosecond denotes a period of time that is one thousandth of an attosecond, whereas yoctosecond is even smaller, representing one trillionth of an attosecond. Femtosecond and picosecond are also related concepts, describing incredibly short periods of time that are still larger than attoseconds. These terms are commonly used in the field of physics and astronomy to describe phenomena at an extremely small scale.
