Practitioner of blazing austerity- That ascetic (Muni), who is performer of such penance that whatever insipid and meager food he eats is instantaneously assimilated in the body, without being converted into blood and faeces.
taptāyasakaṭāhapatitajalakanavadāśuśuṣkālpāhāratayā malarndhirādhibhāvapariṇāmavirahitābhyavahārāḥ taptatapasaḥ.
(TaVā3.36)