oligospermia

synonyms: oligospermatism, oligozoospermia
https://doi.org/10.1351/goldbook.11033

Subnormal concentration of sperm in the male ejaculate (see ejaculation).

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 786 [Terms] [Paper]