Jacob's staff


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Related to Jacob's staff: Cross-staff

Jacob's staff

n
(Surveying) a medieval instrument for measuring heights and distances
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Noun1.Jacob's staff - desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowersJacob's staff - desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers
candlewood - any of several resinous trees or shrubs often burned for light
Fouquieria, genus Fouquieria - resinous succulent trees or shrubs of desert and semidesert regions of southwestern United States that are leafless most of the year
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References in periodicals archive ?
It is doubtful that the prominently displayed Jacob's staff, astrolabe, and European celestial sphere impressed Chinese astronomers.
Abenezra (Avraham Ibn Ezra, 1089-1167) was a Spanish rabbi, immortalized in Robert Browning's poem "Rabbi Ben Ezra." French rabbi and astronomer Levi ben Gershon, also called Gersonides (1288-1344), was best known for inventing the Jacob's Staff, a tool used for centuries by sailing ships to navigate by the stars.
In medieval times, what was a Jacob's staff? Frank Skinner - see Question 10