Dictionary Definition:
Rabhasa [rabh=labh, which see for etym. Cp. also Lat rabies. -- Dhtp 205 expls rabh (correctly) by ārambha & Dhtm 301 by rābhassa] wild, terrible, violent D i.91, expld by "bahu -- bhāṇin" at DA i.256. There are several vv. ll. at this passage.