isometric

UK: /ˌaɪsəʊˈmɛtrɪk/ US: /ˌaɪsəˈmɛtrɪk/ ,(ī′sə me′trik)

WordReference Random House Learner's Dictionary of American English © 2026

i•so•met•ric /ˌaɪsəˈmɛtrɪk/   adj. Also, ˌi•soˈmet•ri•cal. 

1. of or relating to isometric exercises.

n. 

2. Sport isometrics, [plural] exercises in which a muscle or muscle group is tensed against another muscle or something that cannot move.

i•so•met•ri•cal•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

i•so•met•ric  (ī′sə me′trik), adj. Also, i′so•met′ri•cal. 

1. Mathematics of, pertaining to, or having equality of measure.
2. of or pertaining to isometric exercise.
3. Crystallography noting or pertaining to that system of crystallization that is characterized by three equal axes at right angles to one another. Cf. crystal system.
4. Poetry [Pros.] of equal measure;
   made up of regular feet.
5. Fine Art [Drafting.] designating a method of projection (isomet′ric projec′tion) in which a three-dimensional object is represented by a drawing (i′somet′ric draw′ing) having the horizontal edges of the object drawn usually at a 30° angle and all verticals projected perpendicularly from a horizontal base, all lines being drawn to scale. Cf. orthographic projection.

n. 

6. Sport isometrics, isometric exercise (def. 1).
7. an isometric drawing.
8. Physics Also called i′somet′ric line′. isochor.

• Greek isometr(ía) isometry + -ic
• 1830–40

i′so•met′ri•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

isometric / ˌaɪsəʊˈmɛtrɪk/ adjective
also: isometrical

1. having equal dimensions or measurements
2. of or relating to muscular contraction that does not produce shortening of the muscle
3. (of a crystal or system of crystallization) having three mutually perpendicular equal axes
4. (of a method of projecting a drawing in three dimensions) having the three axes equally inclined and all lines drawn to scale

noun

1. Also called: isometric drawing a drawing made in this way

Etymology: 19th Century: from Greek isometria (see iso- + -metry) + -ic

ˌisoˈmetrically adverb