around-the-clock

adjective

Definition of around-the-clock

: being in effect, continuing, or lasting 24 hours a day : constant around-the-clock surveillance

First Known Use of around-the-clock

1915, in the meaning defined above

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The first known use of around-the-clock was in 1915

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Cite this Entry

“Around-the-clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/around-the-clock. Accessed 5 Dec. 2020.

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around-the-clock

adjective

English Language Learners Definition of around-the-clock

chiefly US : happening or continuing all day and all night

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