Ronda Rousey to Correia -- DEATH STARE?

It's hard to look like a badass in a sparkly half shirt -- but Ronda Rousey pulled it off ... giving the LOOK OF DEATH to Bethe Correia today during the staredown for UFC 190 in Brazil. These women HATE each other -- and as Ronda told TMZ earlier this week, she doesn't just want to beat Correia, she wants to HURT HER AS BADLY AS POSSIBLE. Ouch!