Woman - 1) an individual identified by other members of society as being a member of the feminine gender class 2) an individual who identifies as being a member of the feminine gender class 3) an adult female.

From the practical point of view, definition 1 seems to be the day to day functional definition of Woman. Definition 2 seems to be a political definition created by the transgendered community and definition 3 I would call a technical and legal definition but not a practical day to day one.

For me, definition 1 is both real and sufficient.

Marla