A label for genders that are caused by, related to, and/or affected by trauma.
It can include a gender that:
-you have because of trauma
-trauma made you experience differently
-relates to something involved in your trauma
-relates to how you cope with trauma
-involves or is affected by symptoms associated with trauma
However, it can involve anything as long as it has to do with trauma.
It can be used as a label on its own, or it can be used as a prefix or suffix when coining genders to indicate that that gender has something to do with trauma. For example, "dogtraumatix" could be a gender related to both dogs and trauma (whether that be trauma from dogs, trauma you have dog-related coping mechanisms for, feeling a doglike gender because of trauma, etc.)
By definition, it only applies to people who have experienced trauma, and some people may personally consider it a neurogender, but it isn't otherwise exclusive to anybody.