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

 

fibroid

 noun
noun
BrE BrE//ˈfaɪbrɔɪd//
 
; NAmE NAmE//ˈfaɪbrɔɪd//
 
(medical)
 
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a mass of cells that form a lump, usually found in the wall of a woman’s uterus
See the Oxford Advanced American Dictionary entry: fibroid