variants or less commonly one-tail
: being a statistical test for which the critical region consists of all values of the test statistic greater than a given value or less than a given value but not both compare two-tailed

Word History

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of one-tailed was in 1942

Dictionary Entries Near one-tailed

Cite this Entry

“One-tailed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one-tailed. Accessed 6 Dec. 2022.

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