The Collaborative International Dictionary of English v.0.48:
Bulbar \Bulb"ar\, a. Of or pertaining to bulb; especially, in medicine, pertaining to the bulb of the spinal cord, or medulla oblongata; as, bulbar paralysis. [1913 Webster]WordNet (r) 3.0 (2006):
bulbar adj 1: involving the medulla oblongata; "bulbar paralysis"