biological

adjective

bi·​o·​log·​i·​cal ˌbī-ə-ˈlä-ji-kəl How to pronounce biological (audio)
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
biologically adverb

Examples of biological in a Sentence

the rights of the biological father in this case
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Authorities previously identified Snelling as the newborn’s biological mother. Charlotte Phillipp, PEOPLE, 7 Sep. 2025 Rodrigues entered foster care after witnessing her biological mother battle addiction and suffering neglect. Stephanie Nolasco, FOXNews.com, 6 Sep. 2025 This allows for young Future to share the same last name as his household while retaining a connection to his biological father. Jessica Bennett, VIBE.com, 5 Sep. 2025 No female athlete should be subjected to a biological male showering in her locker room. Georgea Kovanis, Freep.com, 4 Sep. 2025 See All Example Sentences for biological

Word History

First Known Use

1818, in the meaning defined at sense 1

Time Traveler
The first known use of biological was in 1818

Browse Nearby Words

Cite this Entry

“Biological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological. Accessed 9 Sep. 2025.

Kids Definition

biological

adjective
bi·​o·​log·​i·​cal
ˌbī-ə-ˈläj-i-kəl
variants also biologic
-ˈläj-ik
1
: of or relating to biology or to life and living things
2
: connected by a relationship involving heredity rather than by one involving adoption or marriage
his biological father
biologically
-ˈläj-i-k(ə-)lē
adverb

Medical 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
biologically adverb

More from Merriam-Webster on biological

Last Updated: - Updated example sentences
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