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.
Thomas, a biological male, previously competed for the UPenn men's swimming team from 2017-20 under the name Will Thomas. Jackson Thompson, FOXNews.com, 2 July 2025 Guests begin with biological age testing, body composition scans, and consultations to assess stress markers, inflammation, and posture. Nel-Olivia Waga, Forbes.com, 2 July 2025 Prosecutors decided to add charges of assault on a minor and tampering with physical evidence after learning about the biological father's claims, and the jury convicted Harasymczuk on those counts as well back in March. Chris Spargo, People.com, 30 June 2025 In 1964, Mansfield gave birth to Mariska, who revealed in May 2025 that Sardelli was her biological father, not Mickey, as was the narrative all these years. Randall Colburn, EW.com, 28 June 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 8 Jul. 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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