Apte Sanskrit-English Dictionary
a. [arūṃṣi marmāṇi tudati; a- rus-tud, khaś mumāgamaśca P. III. 2. 35; VI. 3. 67] 1 Cutting or wounding the vital parts, inflicting wounds, corrosive, painful, sharp (fig. also); caustic; aruṃtudamivālānamanirvāṇasya daṃti- naḥ R. 1. 71; Ki. 14. 55; Śi. 2. 109.
2 Acrimonious, sour (dis- position); Ms. 2. 161.