ul·tra·slow
| \ ˌəl-trə-ˈslō
\
\
Definition of ultraslow
: moving with, exhibiting, or marked by extremely low speed : extremely or extraordinarily slow
ultraslow motion
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“Ultraslow.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraslow. Accessed 4 Mar. 2021.
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Time Traveler for ultraslow
The first known use of ultraslow was in 1870
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