BIOLOGICAL Synonyms: 8 Similar and Opposite Words

biological

adjective

ˌbī-ə-ˈlä-ji-kəl

variants also biologic

Definition of biological

as in birth

being such by blood and not by adoption or marriage the rights of the biological father in this case

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of biological But researchers like me are tackling the problem by studying mixtures that reflect real-world exposures and grouping chemicals with similar biological effects. — Brad Reisfeld, The Conversation, 6 July 2026 As its name implies, the LNT model suggests there are no thresholds below which biological risks go away, and the NRC accepts that model. — ArsTechnica, 6 July 2026 Aside from the peeling of the waterproof coating, the reflecting pool has been plagued by an algae bloom, a persistent problem due to Washington’s high heat during the summer and the pool’s shallow depth, which creates an ideal biological incubator. — Philip Wang, Time, 6 July 2026 Now there’s even more evidence, just published in the journal JAMA Network Open, that an anti-inflammatory diet may play an important role in reducing dementia risk — even among people already at higher biological risk for the condition. — Katia Hetter, CNN Money, 6 July 2026 See All Example Sentences for biological

Recent Examples of Synonyms for biological

Adjective

The infant and his mother were then transported to a hospital for post-birth medical care, with both expected to make a full recovery.

— Latoya Gayle, PEOPLE, 3 July 2026
Piedmont Augusta began a similar program in April, offering orange and red silicon post-birth alert bracelets for mothers immediately after delivery.

— Roni Robbins, AJC.com, 15 May 2026

Definition of birth

Adjective

By triggering the release of a natural growth factor in the brain and modulating neural pathways associated with addiction and reward, ibogaine restores healthy dopamine function and reduces cravings, Barsuglia said.

— Gavin Escott, USA Today, 6 July 2026
This multitasking hair care product is known for reducing frizz, boosting shine, and hydrating split ends, and some natural oils even help with hair growth.

— Ariana Yaptangco, Glamour, 5 July 2026

Definition of natural

Adjective

Both men argue Los Angeles should consider creating a dedicated anti-squatter task force to help law enforcement distinguish legitimate tenant disputes from cases involving criminal conduct.

— Stepheny Price, FOXNews.com, 5 July 2026
Schlittler, meanwhile, has a legitimate case to start for the American League, which will be managed by rival Blue Jays skipper John Schneider.

— Gary Phillips, New York Daily News, 5 July 2026

Definition of legitimate

Browse Nearby Words

biography

biological

biopesticide

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“Biological.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/biological. Accessed 8 Jul. 2026.

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Synonyms of biological

adjective

Example Sentences

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