noun
oligozoospermia; oligospermia
Medical term for a low sperm count in semen. Used in clinical contexts.
乏精子症は男性不妊の原因の一つです。
Oligozoospermia is one of the causes of male infertility.
From 乏 (ぼう, 'scarce') + 精子 (せいし, 'sperm') + 症 (しょう, 'condition'). A modern medical compound.