bipotentiality

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The capacity to act, function, or develop in either of two possible ways.
• noun The capacity to function either as a male or a female.
• noun The condition of having both male and female reproductive organs; hermaphroditism.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The capacity to develop in either of two different ways, especially to become either male or female
• noun The presence of both male and female reproductive organs in an individual; hermaphroditism