deferent

(redirected from deferens)
Also found in: Dictionary, Thesaurus, Medical.

deferent

(def -ĕ-rĕnt) See Ptolemaic system.

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.

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.
References in periodicals archive ?
A published scientific report stated that men with congenital bilateral absence of vas deferens (CBAVD) have a mild form of cystic fibrosis (CF) (60).
8) divided these cases according to anatomic and functional properties, such as having drainage to an epididymis and vas deferens, which is suggestive of reproductive function.
Phase II clinical trial of a vas deferens injectable contraceptive for the male, Contraception, 1997, 56(4):245-250, <http://www.
They are usually found within the epididymis or along the course of the vas deferens.
It consists of enlarge veins (varicose veins) around the epididymis and vas deferens.
Removal of uterus and its derivatives can be performed provided, care is taken not to damage the vas deferens, if there is some spermatogenesis.
3) Both may be secondary to testicular failure or obstruction inside the testis, epididymis, vas deferens or ejaculatory duct.
Leung (1988) classified cases of polyorchidism into four types, of which the triorchid hummingbird seems to fit into 'type C', which is characterized by the supernumerary testis having its own epididymis and sharing the ductus deferens with the regular testis in a parallel fashion.
Sadler in this regard also mentioned that anterior tubes and glomeruli of mesonephros, appear degenerative changes and until the end of the second month most of them disappear and in a small number of males only the posterior duct of mesonephros tubes remain and involved in the formation of the genital system (epididymis, vas deferens channels, vesicles seminal, etc.
Spectrum of CFTR mutations in cystic fibrosis and in congenital absence of the vas deferens in France.