Instinct of Anger- Impulsive sensation of anger on account of the Udaya (rise) of the krodhavedanīya Karma (the Karma which is responsible for the rise of anger).
krodhavedanīyodayāt tadāveśagarbbhā punisamukhavadanadantacchadasphuraṇaceṣtā krodhasaṃjñā.
(Prajñā 8.1 Vṛ Pa 222)