n.

1. 挑衅；挑拨；激怒[U]
   They did not react to this provocation.

   他们对这一挑衅未作反应。

2. 挑衅行为；激怒的原因[C]

n.

1. the action of provoking.
   ▸action or speech that provokes.
   ▸Law  action or speech held to be likely to prompt physical retaliation.
2. Medicine  testing to elicit a particular response or reflex.