biological child

noun

any child conceived rather than adopted by a specified parent, and therefore carrying genes from the parent.

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Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for biological child

Contemporary Examples

During their 12 years together, they adopted eight more and (allegedly) had one biological child, Ronan.

What You Should Know About Woody Allen's Feud With Mia and Ronan Farrow Marina Watts January 13, 2014
There are plenty of foster children who need love just as much as a possible future biological child.

Why I Choose to Be Child-Free: Readers Share Their Stories Harry Siegel February 27, 2013
The Daily Beast: Adaleen is now pregnant with the biological child of siblings JJ and Wanda (Melora Walters).

More Big Love Questions Answered Jace Lacob March 10, 2010

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