asymmetric

or a·sym·met·ri·cal

[ey-suh-me-trik or ey-suh-me-tri-kuh l; as-uh-]

adjective

not identical on both sides of a central line; unsymmetrical; lacking symmetry: Most faces are asymmetric.
(of a logical or mathematical relation) holding true of members of a class in one order but not in the opposite order, as in the relation “being an ancestor of.”
Chemistry.
  1. having an unsymmetrical arrangement of atoms in a molecule.
  2. noting a carbon atom bonded to four different atoms or groups.
  3. (of a polymer) noting an atom or group that is within a polymer chain and is bonded to two different atoms or groups that are external to the chain.

Nearby words

  1. asylee,
  2. asyllabic,
  3. asylum,
  4. asylum seeker,
  5. asymbolia,
  6. asymmetric bars,
  7. asymmetric time,
  8. asymmetric warfare,
  9. asymmetrical,
  10. asymmetrical warfare

Origin of asymmetric

First recorded in 1870–75; a-6 + symmetric

Related formsa·sym·met·ri·cal·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for asymmetric


British Dictionary definitions for asymmetric

asymmetric

asymmetrical

adjective

not symmetrical; lacking symmetry; misproportioned
chem
  1. (of a molecule) having its atoms and radicals arranged unsymmetrically
  2. (of a carbon atom) attached to four different atoms or radicals so that stereoisomerism results
  3. involving chiral moleculesasymmetric synthesis
electrical engineering (of conductors) having different conductivities depending on the direction of current flow, as of diodes
aeronautics having unequal thrust, as caused by an inoperative engine in a twin-engined aircraft
logic maths (of a relation) never holding between a pair of values x and y when it holds between y and x, as " …is the father of… "Compare symmetric (def. 1), antisymmetric, nonsymmetric
Derived Formsasymmetrically, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012