biological
adjective
bi·o·log·i·cal
ˌbī-ə-ˈlä-ji-kəl 
variants
or less commonly biologic
1
: of or relating to biology or to life and living processes
2
: used in or produced by applied biology
3
: connected by direct genetic relationship rather than by adoption or marriage
her biological father
Examples of biological in a Sentence
the rights of the biological father in this case
Recent Examples on the Web
Fittingly, moments later, Consuelos also started crying after his wife brought up another news item involving a family that, after the death of their young dog, adopted a replacement that, unbeknownst to them, ended up being their late pet's biological father.
—
EW.com, 15 July 2025
Rudy Pankow, who played JJ Maybank for the first four seasons of the series, is not returning for the final season after his character died during the Pogues' mission in Morocco — at the hands of his biological father, Chandler Groff (J. Anthony Crane).
—Julia Moore, People.com, 15 July 2025
How Magnesium Affects Cholesterol Magnesium is a naturally occurring mineral that helps regulate hundreds of biological processes, including those that influence cholesterol levels.
—Patricia Weiser, Verywell Health, 14 July 2025
Richard Larson was not the baby's biological father and police would not provide more information about him.
—Ryan Murphy, IndyStar, 14 July 2025
See All Example Sentences for biological
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EW.com, 15 July 2025
Rudy Pankow, who played JJ Maybank for the first four seasons of the series, is not returning for the final season after his character died during the Pogues' mission in Morocco — at the hands of his biological father, Chandler Groff (J. Anthony Crane).
—Julia Moore, People.com, 15 July 2025
How Magnesium Affects Cholesterol Magnesium is a naturally occurring mineral that helps regulate hundreds of biological processes, including those that influence cholesterol levels.
—Patricia Weiser, Verywell Health, 14 July 2025
Richard Larson was not the baby's biological father and police would not provide more information about him.
—Ryan Murphy, IndyStar, 14 July 2025
See All Example Sentences for biological
Cite this Entry
“Biological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological. Accessed 29 Jul. 2025.
Copy CitationMedical Definition
biological
adjective
variants
also biologic
1
: of or relating to biology or to life and living processes
2
: used in or produced by applied biology
3
: related by direct genetic relationship rather than by adoption or marriage
an adoptee who searched for years for her biological parents
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