Definition of cyst noun from the Oxford Advanced Learner's Dictionary



BrE BrE//sɪst//
; NAmE NAmE//sɪst//
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a growth containing liquid that forms in or on a person’s or an animal’s body and may need to be removed Word Originearly 18th cent.: from late Latin cystis, from Greek kustis ‘bladder’.
See the Oxford Advanced American Dictionary entry: cyst