noun.
In mathematics, the locus of the centers of circles of which a bicircular quartic is drawn as the envelop.
Bearing off or away; carrying off; conveying away; specifically, in anatomy and physiology, efferent: opposed to afferent: as, the deferent duct of the testes.
noun.
That which carries or conveys; a conductor.
noun.
Specifically A vessel or duct in the human body for the conveyance of fluids.
noun.
(also called the orbit), in the Ptolemaic system of astronomy, a circle upon the circumference of which another circle was supposed to move, this second circle being called the epicycle, and carrying the body of the planet.