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.
Specialty lamps are already sold for other biological purposes, including helping people cope with disruptions to natural circadian rhythms such as jet lag.
From Science Daily ● Aug. 26, 2026
The responsibility unit includes teams that work on testing Google’s AI models for nuclear, biological and chemical risks.
From The Wall Street Journal ● Aug. 26, 2026
By linking those samples with long-term health information and genetic data already held by the cohort studies, researchers hope to uncover biological signals associated with heavy menstrual bleeding.
From BBC ● Aug. 26, 2026
That raised the possibility that some of the biological benefits of calorie restriction might be reproduced without requiring people to lose weight.
From Science Daily ● Aug. 26, 2026
The physical structure of the molecule enables its chemical nature, the chemical nature enables its physiological function, and its physiology ultimately permits its biological activity.
From "The Gene" by Siddhartha Mukherjee
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.
