from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Conveying, containing, or producing semen.
  • adjective Bearing seed.

from The Century Dictionary.

  • Seed-bearing; producing seed.
  • 2. Serving to carry semen; containing or conveying the seminal fluid.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Biol.) Seed-bearing; producing seed; pertaining to, or connected with, the formation of semen.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Conveying, containing, bearing, or producing semen.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective bearing or producing seed or semen


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin sēmen, sēmin-, seed, semen; see semen + –ferous.]


  • The testis is a pretty awesome organ, comprised mainly of a bunch of coiled loops called seminiferous tubules.

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  • When I snapped my first picture under the electron microscope, I was breathless at the detail of the image: I could see the long, lovely arch of the interior of a seminiferous tubule and a great mass of flagella whipping out into the lumen.

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  • Irony Boy was chatting with two other sperm in the seminiferous tubules when everything started to shake.

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  • Irony Boy was really angry at his father, and missed all the days of just being a sperm, relaxing with his friends deep in the seminiferous tubules of the testicles.

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  • Although they have fully developed secondary sexual characters and show libido, their testes do not produce spermatozoa because the seminiferous tubules are poorly developed and the spermatogonia and their nuclei are degenerate.

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  • The seminiferous tubules become connected with outgrowths from the Wolffian body, which, as before mentioned, form the efferent ducts of the testis.

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  • From the cords the seminiferous tubules are developed, and between them connective-tissue septa extend.

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  • The seminiferous tubules unite to form the efferent ducts (_vasa efferentia_), about a dozen in number for each testicle; immediately passing out of the testicle, these efferent ducts make up the

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  • Finally, certain internal physiological processes may be the starting-point of the afferent physical stimuli leading to erection; for example, distension of the bladder, and also of the seminal vesicles, and of the seminiferous tubules of the testicle.

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  • The spermatozoa are formed in the walls of the convoluted seminiferous tubules.

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