en el diccionario PONS
ap·pen·dix [əˈpendɪks, pl -dɪsi:z] SUST.
1. appendix < pl -es> (body part):
2. appendix < pl -dices> <[or -es]> (in book or magazine):
- appendix
-
- appendix
- Appendix m <-(es), -dizes [o. -dixe]> espec.
vermiform appendix [ˌvɜːmɪfɔːməˈpendɪks] SUST.
- vermiform appendix
-