At present the word focus is interchangeable with adrenaline just like deflect with dodge. Presumably after things have been updated if I have an eye implant on my assassin it'll read +adrenaline and if I exchange it with my crusader it'll update to +focus etc and reflect the character who is equipping it. 

If not they need some global terms to use instead, like +5 mitigation (which sounds terrible) or +5 armor ability