part of part of proprioception equilibrioception proprioception involved in equilibrioception GO:0051355 perception of orientation with respect to gravity by proprioception equilibrioception by proprioception proprioception during equilibrioception The series of events contributing to equilibrioception by which an organism senses the position, location, orientation, and movement of the body and its parts. Proprioception plays an important role in the ability of an organism to perceive its orientation with respect to gravity.