biological
Americanadjective
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Biology. Also biologic relating to the science and application of biology.
Ideal candidates will have appropriate training in both physical and biological chemistry.
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Biology. relating to or involving living matter.
Liquid nitrogen is critical for preserving blood, tissue, and other biological specimens.
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Biology. relating to the living organisms of a region.
We are hoping to manage the river valley so that we maintain and enhance the current level of biological diversity.
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Biology, Genetics. related genetically, as a birth parent whose egg or sperm contributed to the DNA of a child.
He met his biological father when he was 37.
The Greenes have two biological sons and one adopted daughter.
noun
adjective
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of or relating to biology
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(of a detergent) containing enzymes said to be capable of removing stains of organic origin from items to be washed
noun
Other Word Forms
Etymology
Origin of biological
Explanation
When you use the word biological, you're talking about life and living things. You'll recognize the root "bio-," meaning "life," as in biography — the story of someone's life — and biology — the study of living organisms. The woman who gave birth to you is your biological mother — she's passed her genes on to you and you're related to her, even if somebody else raised you. Anybody you share genes with is your biological relative. Biological cleaning products make use of natural enzymes, and they're supposed to be safe and non-toxic. On the other hand, biological warfare uses bacteria, viruses, and other naturally occurring poisons to injure and kill people.
Vocabulary lists containing biological
It's All in the Family
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Unit 3: Compelling Evidence
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The Double Helix
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The new research points to a possible biological mechanism connecting chronic gum disease and infection with the development of CAVS.
From Science Daily ● Jul. 13, 2026
It combined biological research conducted by Dr. Shahid Khan during his doctoral studies with computational and statistical analysis developed by Dr. Satyaki Roy, professor of mathematical sciences, along with contributions from graduate student Owen Trippany.
From Science Daily ● Jul. 12, 2026
Its advantage isn’t that AI reasons better than humans, she says, but rather that it can absorb and draw on vastly more biological knowledge than any individual researcher.
From The Wall Street Journal ● Jul. 12, 2026
This approach produced a model that more closely reflects the biological environment that develops after a joint injury.
From Science Daily ● Jul. 12, 2026
This does not mean that Homo sapiens and human culture became exempt from biological laws.
From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
