A macro time-unit equivalent to innumerable years, which is equivalent to 10 koṭi-koṭi (= 1014) Addhā Sāgaropamas;
the descending half of the Kālacakra (time-cycle), during which, the biological factors like life-span, structure of body etc. of the humans and sub-humans living in the Samayakṣetra (region of empirical time) undergo a gradual deterioration.
'osappiṇī' tti avasarppati hīyamānārakatayā avasarppayati vā "yuṣkaśarirādibhāvān hāpayatītyavasarpiṇī sāgaropama-koṭīkoṭīdaśakapramāṇaḥ kālaviśeṣaḥ.(Sthā 1.127 Vṛ Pa 27)
dasa sāgaropamakoḍākoḍī kālo osappiṇī.(Bhaga 6.134)
- Utsarpiṇī.