Deferent
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deferent [′def·ə·rənt]

(astronomy)

An imaginary circle around the earth, postulated by Ptolemy, in whose circumference a celestial body or its epicycle is supposed to move.

Deferent

an auxiliary circle in the Ptolemaic geocentric system of the world, introduced to explain the complex motions of planets. It was assumed that the center of the epicycle—another auxiliary circle—moves around the circumference of the deferent, at whose center lies the earth; the planet itself moves along the circumference of an epicycle.

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No references found			In astronomy, Cremonini repudiated not only Copernicus, but all mathematical innovations since Aristotle, rejecting even the epicycles and deferents of Ptolemy in favor of Aristotle's simple cosmology of homocentric spheres. Venetischer Aristotelismus im Ende der aristotelischen Welt: Aspekte ... by Laird, W.R. / Renaissance Quarterly Until recently, the bulk of education reform has resembled the Ptolemaic approach of piling equants on top of deferents on top of epicycles instead of seeking a new starting point, a new set of priorities that would ease the problem. Wisdom-Centered Learning: Striking a New Paradigm for Education by WILSON, KENNETH G. / School Administrator			Defenders' Day Defenders, The defenestrate Defense Defense Advanced Research Project Agency Defense Advanced Research Projects Agency Defense Calculator Defense Communications Agency Defense Data Network Defense Data Network Network Information Center defense economics Defense Fund defense in depth defense information Defense Information Systems Agency defense mechanism Defense of the Soviet Polar Regions of Defense Trade Regulations Defense, United States Department of Defenseman Defensive Defensive Armament defensive minefield defensive programming Deferent Deferents deferment factor deferral deferred addressing deferred data item deferred entry Deferred Expenditures deferred maintenance deferred mount deferred processing deferrization defervescence Deffand, marquise du Defiance Defiance County Defibrator defibrillation Defibrillator deficiencies deficiency deficiency disease deficiency index deficient number deficit financing defilade defile			defer to Deferasirox deference deference deferens deferens deferens deferent deferent deferent Deferent and epicycle Deferent and epicycle Deferent and epicycle deferent duct deferent duct deferent duct deferentectomy deferentectomy deferentectomy deferential deferential deferential Deferential artery Deferential artery Deferential artery Deferential artery deferentially deferentially deferentially deferentitis Deferents deferment deferment deferment deferment factor Deferment Period Deferment Periods deferments deferments deferments Deferoxamine Deferoxamine Deferoxamine mesylate deferrable deferrable Deferrable Scheduling for Fixed-Priority Transactions deferral deferral deferral deferral deferral days deferrals deferrals deferrals deferre deferred deferred deferred deferred Deferred account Deferred Accounts

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Deferent (redirected from Deferents)

Deferent
(redirected from Deferents)