totipotency to·tip·o·ten·cy (tō-tĭp'ə-tən-sē, tō'tĭ-pōt'n-sē) or to·tip·o·tence (tō-tĭp'ə-təns, tō'tĭ-pōt'ns)
n.
The ability of a cell, such as an egg, to give rise to unlike cells and to develop into or generate a new organism or part.
The ability of cells such as an embryonic stem cell to differentiate into any type of body cell. Plant cells are also totipotent, which helps to explain why a graft of a plant can generate a whole new individual out of just a small branch cutting.