birth mother

British  

noun

1. the woman who gives birth to a child, regardless of whether she is the genetic mother or subsequently brings up the child

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Example Sentences

She then found out that her son's birth mother was pregnant, and decided to put herself forward as a potential parent for this new baby, should that be needed.

From BBC • Dec. 19, 2025

Mieke Murkes was an infant when her birth mother, Okgyun, gave her up for adoption.

From The Wall Street Journal • Dec. 4, 2025

In Alabama, a birth mother has just five days to change her mind.

From Slate • Aug. 18, 2025

It was around the same time that PJ’s foster mother implored a local social worker to help him find his birth mother.

From BBC • Jul. 12, 2025

Here we were—my adopted parents, my birth mother, my half sister, and a stranger my mother needed for support—courteously sitting across from one another.

From "Three Little Words: A Memoir" by Ashley Rhodes-Courter