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ulceration (n.)
[ulceration 词源字典]
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
).
[ulceration etymology, ulceration origin, 英语词源]
[ulceration 词源字典]