Bible Dictionaries
Jackscrew
Webster's Dictionary
(n.) A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5.
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Bibliography Information
Webster, Noah. Entry for 'Jackscrew'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​j/jackscrew.html. 1828.