spermarche
n.— «In boys, LH stimulates testosterone production by the Leydig cells and, after spermarche, FSH supports the maturation of spermatozoa.» —“Disorders of Puberty” by Richard D. Blondell; Michael B. Foster; Kamlesh C. Dave American Family Physician July 1, 1999. (source: Double-Tongued Dictionary)