卵らん胞ぽう

noun

ovarian follicle

Anatomical term for the fluid-filled sac in the ovary that contains an immature egg.

• 超ちょう音おん波ぱ検けん査さで卵らん胞ぽうの大おおきさを測はかります。

  We measure the size of the follicle with an ultrasound.

• 卵らん胞ぽうが十じゅう分ぶんに育そだったら排はい卵らんが起おこります。

  Ovulation occurs when the follicle has matured sufficiently.