- - Time unit for studying the speed of light: Abbr.
- - Time it takes light to travel .3 mm: Abbr
- - Teeny-tiny time unit (abbr.)
- - Very brief time, briefly
- - Ultrashort time unit: abbr.
- - Time it takes for light to travel .3 mm
- - Tiny time meas
- - Tiny fraction of a min
- - Tiny time unit (abbr.)
- - Very brief time
- - 60-trillionth of a min.
- - One 60-trillionth of a min
- - Minute part of a minute, for short
- - Minute segment of a min
- - Teeny fraction of a min.
- - Infinitesimal division of a min.
- - Infinitesimal fraction of a min.
- - There are 60 trillion in a min.
- - 1/60 of a trillionth of a min.
- - Min. fraction
- - a 60-trillionth of a minute, for short
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