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URL: https://www.merriam-webster.com/dictionary/physiological

⇱ PHYSIOLOGICAL Definition & Meaning - Merriam-Webster


physiological

adjective

Synonyms of physiological👁 next
1
: of or relating to physiology
2
: characteristic of or appropriate to an organism's healthy or normal functioning
the sodium level was physiological
3
: differing in, involving, or affecting physiological factors
a physiological strain of bacteria

Examples of physiological in a Sentence

Recent Examples on the Web
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.
Yet the German coach’s words also tapped into the science of mindset, or how our beliefs and expectations about an experience can shape physiological, psychological and behavioral outcomes. 👁 Image
Rustin Dodd, New York Times, 17 June 2026
Less speculatively, evolution could have a say in the physiological limits of Earth’s plants. 👁 Image
Scott K. Johnson, ArsTechnica, 15 June 2026
Luteal-phase fatigue and food cravings have clear physiological explanations and follicular-phase cognitive advantages have emerging support. 👁 Image
Allison Palmer updated June 13, Fort Worth Star-Telegram, 13 June 2026
In a 1998 study published in Toxicon, researchers revealed that the inland taipan’s venom comprises a sophisticated mix of biologically active compounds, each of which attacks multiple physiological systems simultaneously. 👁 Image
Scott Travers, Forbes.com, 12 June 2026
See All Example Sentences for physiological

Word History

First Known Use

1704, in the meaning defined at sense 1

Time Traveler
The first known use of physiological was in 1704

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Cite this Entry

“Physiological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/physiological. Accessed 17 Jun. 2026.

Kids Definition

physiological

adjective
1
: of or relating to physiology
2
: characteristic of healthy or normal functioning of the body

Medical Definition

physiological

adjective
1
: of or relating to physiology
2
: characteristic of or appropriate to an organism's healthy or normal functioning
3
: differing in, involving, or affecting physiological factors
a physiological strain of bacteria

More from Merriam-Webster on physiological

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