ulcerationn.
ʌlsə'reʃən
中文n. 溃疡；[病理] 溃疡形成
词根词源
ulceration (n.)c. 1400, from Latin ulcerationem (nominative ulceratio), noun of action from past participle stem of ulcerare "to make sore," from stem of ulcus (see ulcer).
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