Embryonic stem cellplugin-autotooltip__default plugin-autotooltip_bigStem cell: a cell that has the potential to adapt different cell fates to form different kinds of tissues. Not all stem cells are embryonic stem cells.: totipotentplugin-autotooltip__default plugin-autotooltip_bigTotipotent: used to describe stem cells that can potentially differentiate into all cell types of an organism. stem cellsplugin-autotooltip__default plugin-autotooltip_bigStem cell: a cell that has the potential to adapt different cell fates to form different kinds of tissues. Not all stem cells are embryonic stem cells. derived from preimplantion embryos that can be grown in vitroplugin-autotooltip__default plugin-autotooltip_bigIn vitro: taking place outside of a living organism, usually in a test tube or Petri dish. in a Petri dishplugin-autotooltip__default plugin-autotooltip_bigPetri dish: a round dish, usually 5-10 cm in diameter, that can contain growth media to grow cells in vitro..