Definition - What does Oocyte mean?
FertilitySmarts explains Oocyte
An oocyte will mature during the first week of the menstrual cycle. Up to two days before ovulation, the oocyte will be nourished by the surrounding cells. As this process happens, the surrounding cells start to proliferate and produce a high progesterone concentration.
Then the follicle will release a fluid along with the oocyte to allow for a smooth flow of the mature egg to the fallopian tubes, where fertilization may take place. Follicle growth can be followed by conducting an ultrasound.