Late 19th century; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences. From oligo- + spermic, after oligospermia.
Definition of oligospermic in US English:
oligospermic
adjectiveˌɒlɪɡə(ʊ)ˈspəːmɪk
Medicine
Of a person: affected with oligospermia.
Origin
Late 19th century; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences. From oligo- + spermic, after oligospermia.