isometric

adjective

iso·​met·​ric ˌī-sə-ˈme-trik How to pronounce isometric (audio)
1
: of, relating to, or characterized by equality of measure
especially : relating to or being a crystallographic system characterized by three equal axes at right angles
2
: of, relating to, involving, or being muscular contraction (as in isometrics) against resistance, without significant shortening of muscle fibers, and with marked increase in muscle tone compare isotonic
isometrically adverb

Examples of isometric in a Sentence

Recent Examples on the Web
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Each class features Primary Posture and a combination of dynamic stretching, isometric movements (like holds and pulses), and cardio bursts. Hannah Harper, Health, 1 July 2026 Planks are considered isometric exercises, meaning the position remains static (another example is a wall sits or dead hangs). Jenny McCoy, Outside, 23 Mar. 2026 Rather than being a third-person traditional MMO, Lost Ark is a top-down isometric action-RPG with MMO elements. David Jagneaux, Forbes.com, 2 Jan. 2026 In truth, each Fallout game offers something different, and different players will vibe with different titles, whether that's the older isometric RPGs, the newer first-person titles, or even some of the spinoffs. Fran Ruiz, Space.com, 15 Dec. 2025 See All Example Sentences for isometric

Word History

First Known Use

circa 1855, in the meaning defined at sense 1

Time Traveler
The first known use of isometric was circa 1855

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Cite this Entry

“Isometric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isometric. Accessed 6 Jul. 2026.

Kids Definition

isometric

adjective
iso·​met·​ric ˌī-sə-ˈme-trik How to pronounce isometric (audio)
: of, relating to, or being muscular contraction of the kind that takes place in doing isometrics

Medical Definition

isometric

adjective
iso·​met·​ric ˌī-sə-ˈme-trik How to pronounce isometric (audio)
1
: of, relating to, or characterized by equality of measure
especially : relating to or being a crystallographic system characterized by three equal axes at right angles
2
: of, relating to, involving, or being muscular contraction (as in isometrics) against resistance, without significant change of length of muscle fibers, and with marked increase in muscle tone compare isotonic sense 2
3
isometrically adverb

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