IPA: /ˌʌl.səˈreɪ.ʃən/
KK: /ˌʌl.səˈreɪ.ʃən/
A condition where an area of the body develops an open sore, often causing pain and discomfort.
The doctor diagnosed her with ulceration in her stomach.
Ulceration → It is formed from "ulcus" (meaning sore or wound) and the suffix "-ation" (meaning the process of). The word "ulceration" refers to the process of developing sores or wounds.
Think of 'ulcus' meaning a sore, and '-ation' indicating a process — so ulceration is the process of developing sores.