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
While questions continue to swirl regarding the possibility of biological lifeforms being in the possession of the federal government, Heckenlively is offering a stark warning surrounding the reality of aliens and humans coming into contact with each other.
—
Julia Bonavita, FOXNews.com, 25 May 2026
Her new book takes a look at how the world would change in the period after a large-scale biological attack.
—Michael Schaub, Oc Register, 25 May 2026
To replicate this biological advantage, Guo’s team designed a three-pillar framework based on dynamic landmark recognition, experiential memory, and hierarchical decision-making.
—Mrigakshi Dixit, Interesting Engineering, 25 May 2026
The deeper issue is that biological threats increasingly overlap with national security, migration, urbanization, environmental degradation, and irregular conflict.
—Steve Brozak, Forbes.com, 25 May 2026
See All Example Sentences for biological
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Julia Bonavita, FOXNews.com, 25 May 2026
Her new book takes a look at how the world would change in the period after a large-scale biological attack.
—Michael Schaub, Oc Register, 25 May 2026
To replicate this biological advantage, Guo’s team designed a three-pillar framework based on dynamic landmark recognition, experiential memory, and hierarchical decision-making.
—Mrigakshi Dixit, Interesting Engineering, 25 May 2026
The deeper issue is that biological threats increasingly overlap with national security, migration, urbanization, environmental degradation, and irregular conflict.
—Steve Brozak, Forbes.com, 25 May 2026
See All Example Sentences for biological
Cite this Entry
“Biological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological. Accessed 27 May. 2026.
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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