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Definition of birth mother noun from the Oxford Advanced Learner's Dictionary

birth mother

noun
 
/ˈbɜːθ mʌðə(r)/
 
/ˈbɜːrθ mʌðər/
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  1. the woman who gave birth to a child who has been adoptedTopics Family and relationshipsc1, Life stagesc1
See birth mother in the Oxford Advanced American Dictionary
trait
noun
 
 
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