jackknife

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Noun

jackknife (plural jackknives)

1. Alternative spelling of jack-knife
   • 1887, Julian Hawthorne, A Tragic Mystery: From the Diary of Inspector Byrnes (page 25)

     […] near it is a cluster of weapons of villanous aspect, comprising every thing from a Malayan creese to a sailor's jackknife or a Smith & Wesson revolver.

2. (statistics) A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.

Synonyms

• (statistics) leave-one-out

Verb

jackknife (jackknifes, present participle jackknifing; past jackknifed, past participle jackknifed)

1. Alternative spelling of jack-knife

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