Provocation often refers to something that emotionally triggers someone, usually leading to a reaction. She slammed the door in response to his provocation.
Pro Tip 2/3
Precedes Reaction
It implies an action that comes before and provokes a reaction. The focus is on the cause, not the effect. The crowd was calm until the provocation made them erupt in anger.
Pro Tip 3/3
Not Always Intentional
Provocation may not always be intentional. Actions can be provocative by accident. His comment was a provocation, though he hadn't meant to offend.