The Minister for Women and the Ministry for Women represents the interests and supports the rights of all women, including transgender and transsexual women, and recognises the rights of all people to self-identify.
At least they replied. But I would have thought the better answer would be along the lines of.
The definition depends on whether you mean sex or gender. If you mean sex then the definition of a woman is an adult female with two X chromosomes. If you mean gender then it is an adult who identifies as female.
So much of the problem with the trans debate is people treat sex and gender as the same thing. One can recognise someone ‘s gender identity without denying biological sex differences.