autophagy (n.), autophagic (adj.)

https://doi.org/10.1351/goldbook.12929
Digestion and breakdown in lysosomes of a cell’s own proteins and/or organelles.
Note: It may be one route by which proteins can be processed for antigen presentation.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1131 [Terms] [Paper]