Abdominal Organ That May Burst If Not Removed
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2170, Puzzle 3 (Quartz and Obsidian).
Question is: Abdominal Organ That May Burst If Not Removed
and the answer is: APPENDIX
Word Meaning:
APPENDIX — (obsolete in general sense) Something attached to something else; an attachment or accompaniment.
Definitions from Wiktionary.