also: らんほう
ovarian follicle
Anatomical term for the fluid-filled sac in the ovary that contains an immature egg.
We measure the size of the follicle with an ultrasound.
Ovulation occurs when the follicle has matured sufficiently.
follicular phase; proliferative phase
Graafian follicle
estrogen; oestrogen
Standard kanji spelling; the reading らんぽう is the most common.
Alternate reading; less common than らんぽう.
Compound of 卵 (egg) and 胞 (sac/cell), directly describing the anatomical structure.