If she hurts you with her yelling and doesn’t listen to your attempts to communicate or seem to care about the damage she causes, that is abuse. No one phrase or behavior is necessarily abusive, but you can tell someone is abusive when they recklessly and knowingly hurt their loved ones, no matter the method.
Abusers usually seek to control you in some way. Do you feel like you have to act a certain way to avoid the yelling? Does she yell at you over unimportant things? Is her yelling inconsistent? Do you feel like you never know which version of her will show up that day? Does she belittle or insult you?
What about her tone of voice? There’s a specific tone that abusers use for rage episodes. It sounds harsh, almost shrill, empty in a way. Very stressful to listen to. You know it when you hear it. It’s a tone of voice I’ve never heard from a caring person and seems carefully crafted to cause stress.