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
Coy is Tom’s biological son and Beau is Mark’s biological daughter.
—
Sarah Jones, PEOPLE, 11 Oct. 2025
Another case, also at WSHS, a former female student is suing the school for allowing a biological male student, who identifies as gay, not as transgender, to use the female locker room.
—Amy Delaura, The Washington Examiner, 10 Oct. 2025
During one meeting of the school board in the state's capital of Augusta Wednesday, two women undressed to protest the state's policies that allow biological males to compete in girls sports and use girls locker rooms.
—Jackson Thompson, FOXNews.com, 10 Oct. 2025
Gold, which is inert and safe for biological systems, is at the heart of this method.
—Aamir Khollam, Interesting Engineering, 9 Oct. 2025
See All Example Sentences for biological
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Sarah Jones, PEOPLE, 11 Oct. 2025
Another case, also at WSHS, a former female student is suing the school for allowing a biological male student, who identifies as gay, not as transgender, to use the female locker room.
—Amy Delaura, The Washington Examiner, 10 Oct. 2025
During one meeting of the school board in the state's capital of Augusta Wednesday, two women undressed to protest the state's policies that allow biological males to compete in girls sports and use girls locker rooms.
—Jackson Thompson, FOXNews.com, 10 Oct. 2025
Gold, which is inert and safe for biological systems, is at the heart of this method.
—Aamir Khollam, Interesting Engineering, 9 Oct. 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 18 Oct. 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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