biological parent

American  

noun

1. a parent who has conceived biological mother or sired biological father rather than adopted a child and whose genes are therefore transmitted to the child.

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Example Sentences

One of the oldest laws of parentage is the “marital presumption,” which automatically establishes a birth mother’s husband as the presumptive legal father, even if he is not a biological parent.

From Slate • May 13, 2026

New documents in a lawsuit against Priscilla Presley’s son include claims that Elvis Presley’s granddaughter Riley Keough is the biological parent of John Travolta and the late Kelly Preston’s youngest child, Benjamin.

From Los Angeles Times • Dec. 18, 2025

IVF clinics had voluntarily started to end anonymous donations, meaning any children would eventually be given the name of their biological parent.

From BBC • Nov. 19, 2025

The milk doesn’t have to be from a biological parent: Unlike blood or bone marrow, there are no biological markers in donated breast milk that limit who can receive it.

From Seattle Times • Mar. 30, 2023

"I grew up without my parent, my biological parent, so I had to learn how to communicate with people around the villages to try and survive", she said.

From Reuters • Feb. 22, 2023