sex cell vs germ cell

sex cell and germ cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex cell	Yes	No	No	No
germ cell	Yes	No	No	No

As nouns, sex cell and germ cell are synonyms defined as:

sex cell and germ cell: a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation

Other synonyms of sex cell include reproductive cell.

sex cell (noun)	germ cell (noun)
a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation	a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation