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 The women reported information about their diet and also gave saliva samples that the team used to analyze their biological age. Kaitlin Sullivan, Health, 25 Sep. 2024 Circadian rhythms are part of the body’s internal clock, running in the background so that biological processes occur at the correct time, day or night, to keep the body functioning. James Myhre & Dennis Sifris, Md, Verywell Health, 24 Sep. 2024 Now, a local woman is alleging the remains are those of one of her biological children who had been living at the residence, per KSN and Parlier. Samira Asma-Sadeque, Peoplemag, 23 Sep. 2024 Pesto is the biological child of Sea Life's biggest and oldest penguin, Blake, giving him an edge in the genetics department. Mary Walrath-Holdridge, USA TODAY, 23 Sep. 2024 See all Example Sentences for biological 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'biological.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1818, in the meaning defined at sense 1

Time Traveler
The first known use of biological was in 1818

Dictionary Entries Near biological

Cite this Entry

“Biological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological. Accessed 5 Oct. 2024.

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!