Definition of seminiferous in English:
 seminiferous
adjective ˌsɛmɪˈnɪf(ə)rəsˌseməˈnif(ə)rəs
Producing or conveying semen.
 Example sentencesExamples
-  The seminiferous tubules in the testes, which are the origin of the sperm cells, however, will be reduced in diameter and size.
 -  Following the postmeiotic phase, spermatozoa are released into the lumen of the seminiferous tubule of the testis and transported to the epididymis for storage.
 -  It takes three months for the seminiferous tubules of the testes to produce sperm which is then stored in the epididymis.
 -  The seminiferous tubules were gently pelleted and subjected to proteinase digestion and DNA extraction.
 -  The passage of sperm from the seminiferous tubules of the testis to the vas deferens takes about 12 days.
 
Origin
  
Late 17th century: from Latin semen, semin- 'seed' + -ferous.