noun
follicle; ovarian follicle
Medical and biological term. Most commonly refers to ovarian follicles, but can also denote other small sac-like structures in the body.
超音波検査で卵巣の濾胞の大きさを測ります。
We measure the size of the ovarian follicles with an ultrasound.
濾胞が成熟すると排卵が起こります。
When the follicle matures, ovulation occurs.