Bible Encyclopedias
Deferent
1911 Encyclopedia Britannica
(Lat. deferens, bearing down), in ancient astronomy, the mean orbit of a planet, which carried the epicycle in which the planet revolved. It is now known to correspond to the actual orbit of the planet round the sun.
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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Deferent'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/d/deferent.html. 1910.