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Semidiurnal
Part of Speech: Noun

Pertaining to, or traversed in, six hours, or in half the time between the rising and setting of a heavenly body; as, a semidiurnal arc.

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Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for jackscrew from the 1913 edition of Webster's Revised Unabridged Dictionary. Define jackscrew using one of the most comprehensive free online dictionaries on the web.

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jackscrew
Part of Speech: noun
Results: 1
1. A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5.
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