gametocyte vs oocyte

gametocyte and oocyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
gametocyte	Yes	No	No	No
oocyte	Yes	No	No	No

As nouns, oocyte is a hyponym of gametocyte; that is, oocyte is a word with a more specific, narrower meaning than gametocyte:

gametocyte: an immature animal or plant cell that develops into a gamete by meiosis
oocyte: a female gametocyte that develops into an ovum after two meiotic divisions

Other hyponyms of gametocyte include spermatocyte.

gametocyte (noun)	oocyte (noun)
an immature animal or plant cell that develops into a gamete by meiosis	a female gametocyte that develops into an ovum after two meiotic divisions