azoospermia
noun
azo·o·sper·mia (ˌ)ā-ˌzō-ə-ˈspər-mē-ə 
: absence of spermatozoa from the seminal fluid
Example Sentences
Recent Examples on the Web Our diagnosis was azoospermia due to Sertoli cell-only syndrome (which means the testicles fail to produce living sperm cells). 
Molly Longman, refinery29.com, 15 June 2019
Molly Longman, refinery29.com, 15 June 2019 Word History
Etymology
New Latin, from Greek azoos lifeless (from a- a- entry 2 + zōē life) + sperma semen, seed — more at sperm
First Known Use
1869, in the meaning defined above
Medical Definition
azoospermia
noun
azo·osper·mia ā-ˌzō-ə-ˈspər-mē-ə, ə-ˌzō-
: absence of spermatozoa from the seminal fluid compare aspermia