Infrequent or light menstrual periods in women of child-bearing age.(noun)
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Use "oligomenorrhea" in a sentence
"In dysmenorrheal (painful menstruation) and oligomenorrhea (scanty menstruation), the medicated milk or its oil is salubrious."
"Hypogonadotropic hypogonadism typically manifests as hypoplastic external genitalia and delayed gonadal maturation, with delayed menarche and oligomenorrhea in females, and cryptorchidism and hypogonadism in males"
"Delayed and / or partial puberty is often observed in girls with PWS, with late-onset or absent menarche, and amenorrhea or oligomenorrhea in most cases"