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

 

IUD

 noun
noun
BrE BrE//ˌaɪ juː ˈdiː//
 
; NAmE NAmE//ˌaɪ juː ˈdiː//
 
(also coil)
 
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the abbreviation for intrauterine device (a small plastic or metal object placed inside a woman’s uterus (= where a baby grows before it is born) to stop her becoming pregnant)
See the Oxford Advanced American Dictionary entry: IUD