ul·​tra·​rap·​id ˌəl-trə-ˈra-pəd How to pronounce ultrarapid (audio)
: marked by an extremely fast rate of motion, activity, succession, or occurrence : extremely or extraordinarily rapid
ultrarapid heating/cooling
a battery that supports ultrarapid charging

Word History

First Known Use

1921, in the meaning defined above

Time Traveler
The first known use of ultrarapid was in 1921

Dictionary Entries Near ultrarapid

Cite this Entry

“Ultrarapid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrarapid. Accessed 20 May. 2024.

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