/ ˈʌlsəreɪt; NAmE / verb
[ v , vn ] [ usually passive ] ( medical ) to become, or make sth become, covered with ulcers
► ul·cer·ation / ˌʌlsəˈreɪʃn; NAmE / noun [ U , C ]
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WORD ORIGIN
late Middle English : from Latin ulcerat- made ulcerous, from the verb ulcerare .