surrogate mother

American  

noun

1. a person who acts in the place of another person's biological mother.

2. an animal that is given another's offspring to raise.

3. Medicine/Medical. a woman who helps a couple to have a child by carrying to term an embryo conceived by the couple and transferred to her uterus, or by being inseminated with the man's sperm and either donating the embryo for transfer to the woman's uterus or carrying it to term.

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surrogate mother British  

/ ˈsʌrəɡəsɪ /

noun

1. a woman who bears a child on behalf of a couple unable to have a child, either by artificial insemination from the man or implantation of an embryo from the woman

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Other Word Forms

• surrogacy
  noun

Etymology

Origin of surrogate mother

First recorded in 1975–80

Example Sentences

So being a single father by choice is a rarer phenomenon, and doing so via gestational surrogacy, in which the surrogate mother bears no genetic link to the child she carries, is rarer yet.

From Slate • Feb. 23, 2026

Chloe Dalton tried to prove the Roman writer wrong when she became a surrogate mother to a baby hare she discovered outside her house in rural England.

From The Wall Street Journal • Dec. 3, 2025

Taking to the stage, Fender dedicated the award to his late mentor, Annie Orwin, who he previously described as "a surrogate mother in a lot of ways".

From BBC • Oct. 16, 2025

Scientists achieved the world's first IVF rhino pregnancy, successfully transferring a lab-created rhino embryo into a surrogate mother.

From BBC • Dec. 28, 2024

Next to the dead surrogate mother was a young bonobo.

From "Endangered" by Eliot Schrefer