Definitions

biological parent

NOUN

birth mother or father

Synonyms

WEAK

biological father biological mother birth father birth mother birth parent father mother natural parent

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

“Knowing that you were essentially sold by a biological parent for a spring break or to pay off student debt is not a fun feeling,” Laura High told me.

From Slate • Jul. 16, 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

Their pregnancy was considered a rarity in India because "no one else has called themselves a biological parent in the transgender community as far as we know", the couple told the BBC earlier this week.

From BBC • Feb. 8, 2023