asym·​me·​try | \ (ˌ)ā-ˈsi-mə-trē How to pronounce asymmetry (audio) \
plural asymmetries

Definition of asymmetry

: lack or absence of symmetry As Mercury orbits the Sun, it experiences a small torque due to its slight asymmetry in the plane of its orbit …— Johanna Miller French rococo was a part of this mood, which tended to favor pastel colors, asymmetry, a calculated disorder, a dreamy sensuality.— Jonathan D. Spence "Handedness"—whether we are left- or right-handed—is a convenient indicator of the development of the brain asymmetries that are thought to be required for language.— Tim Flannery

First Known Use of asymmetry

1651, in the meaning defined above

Keep scrolling for more

Learn More about asymmetry

Time Traveler for asymmetry

Time Traveler

The first known use of asymmetry was in 1651

See more words from the same year

Statistics for asymmetry

Cite this Entry

“Asymmetry.” Dictionary, Merriam-Webster, Accessed 28 Mar. 2020.

Keep scrolling for more

More Definitions for asymmetry


asym·​me·​try | \ (ˈ)ā-ˈsim-ə-trē How to pronounce asymmetry (audio) \
plural asymmetries

Medical Definition of asymmetry

1 : lack or absence of symmetry: as
a : lack of proportion between the parts of a thing especially : want of bilateral symmetry asymmetry in the development of the two sides of the brain
b : lack of coordination of two parts acting in connection with one another asymmetry of convergence of the eyes
2 : lack of symmetry in spatial arrangement of atoms and groups in a molecule

Keep scrolling for more

More from Merriam-Webster on asymmetry

Thesaurus: All synonyms and antonyms for asymmetry

Spanish Central: Translation of asymmetry

Nglish: Translation of asymmetry for Spanish Speakers

Comments on asymmetry

What made you want to look up asymmetry? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

March 2020 Words of the Day Quiz

  • field of crocuses
  • Which is a synonym of rectitudinous?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!