foster mother

American  

noun

1. a woman who takes the place of a mother in raising a child.

2. a nurse.

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foster mother British  

noun

1. a woman who looks after or brings up a child or children as a mother, in place of the natural or adoptive mother

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Etymology

Origin of foster mother

before 1000; Middle English; Old English

Example Sentences

See Examples For:

foster mother

K's foster mother has called for an inquiry into how K was left living in Wixon's home for 25 years without the authorities knowing.

From BBC ● Mar. 12, 2026

As Laura, the foster mother in “Bring Her Back,” Ms. Hawkins turns the smile up to terrifying.

From The Wall Street Journal ● Sep. 30, 2025

Justin’s foster mother said her daughter had handed off the toddler and his siblings to Daniel that morning at a Taco Bell.

From Los Angeles Times ● Jul. 22, 2024

You were a foster mother to a disabled adult for 13 years.

From Slate ● Apr. 4, 2024

I knew our foster mother would gently scold me in the morning, but I just kept doing it.

From "Courage to Soar" by Simone Biles