The conservative dialect has preserved the gender differentiation of the 2nd and 3rd person in the plural forms, whereas dual forms have not survived.

There appears to be no gender differentiation among the Ood, though the Doctor seems to be able to determine their gender.

This gender differentiation continues into the next generation in traditional royal families.

In most cultures, gender differentiation of clothing is considered appropriate for men and women.

A. We know, all of us know, that there are some very deep-founded assumptions in this culture that have to do with gender differentiations.

Consider this gender differentiation: A gorgeous, fit guy who sleeps with an overweight, unattractive woman is "throwing himself on a grenade" for the team.

The degree of gender differentiation in a country depends primarily on the culture within that nation and its history.

This shows that the earnings gap is not primarily a gender differentiation but about the difficulty of combining being a mother with having a career.

A secondary argument concerns the system of gender differentiation.

The female has more black hairs on its head but gender differentiation can be difficult for humans.