appendiceal
appendical → της σκωληκοειδούς απόφυσης, της σκωληκοειδούς αποφύσεως
(generally, chiefly of a book's or of books') Of, pertaining to, or of the nature of an appendix or appendices.
(rare, biology, specifically) Of, pertaining to, or of the nature of the vermiform appendix.
appendical - Wiktionary