Meaning of PILES in English

PILES

/ paɪlz; NAmE / noun

[ pl. ] painful swollen veins at or near the anus

SYN haemorrhoids

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WORD ORIGIN

late Middle English : probably from Latin pila ball (because of the globular form of external haemorrhoids).

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.