physiological

adjective

phys·​i·​o·​log·​i·​cal ˌfi-zē-ə-ˈlä-ji-kəl How to pronounce physiological (audio)
variants or physiologic
Synonyms of physiologicalnext
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
physiologically adverb

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.
What’s critical—and often overlooked—is that these physiological changes can begin with something as seemingly routine as a doctor’s visit that ends without clarity. Lauryn Higgins, Flow Space, 12 May 2026 But the underlying mechanism is well-established — a landmark 1999 study in Nature found foot vasodilation was the single strongest physiological predictor of how quickly someone falls asleep. Allison Palmer, Kansas City Star, 12 May 2026 Throughout the day, the wearable tracked his physiological responses to various environments, from the stress of a live television broadcast to the physical exertion of a workout. Khloe Quill, FOXNews.com, 8 May 2026 Whoop tracks long-term metrics like physiological age (which may differ from your chronological age) and your pace of aging. Andrew Gebhart, PC Magazine, 8 May 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 15 May. 2026.

Kids Definition

physiological

adjective
phys·​i·​o·​log·​i·​cal ˌfiz-ē-ə-ˈläj-i-kəl How to pronounce physiological (audio)
variants or physiologic
1
: of or relating to physiology
2
: characteristic of healthy or normal functioning of the body
physiologically adverb

Medical Definition

physiological

adjective
phys·​i·​o·​log·​i·​cal ˌfiz-ē-ə-ˈläj-i-kəl How to pronounce physiological (audio)
variants or physiologic
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
physiologically adverb

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