The heavily pronounced zygomatic bone is a defining masculine feature. Yes, women have it too but not like this.
I don't think you're right in that. High cheekbones (pronounced zygomatic arches) are found in both sexes. Take a look at (for example) Kiera Knightly.
EDIT: The photo I linked to was unreasonably large for the forum, but I'm sure you can Google.
