Ulstur
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An inflammatory and often suppurating lesion on the skin or an internal mucous surface.
I haves an ulstur on me lip dad, will ye get me de bonge eile?

Hello. I've just had my tea. Would you like me to translate 'Ulstur' in use for you?
I have an ulcer upon my lip, Father; would you fetch me the other ointment?
Any good?