asymmetric

[ey-suh-me-trik, as-uh-]
adjective
1.
not identical on both sides of a central line; unsymmetrical; lacking symmetry: Most faces are asymmetric.
2.
(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.”
3.
Chemistry.
a.
having an unsymmetrical arrangement of atoms in a molecule.
b.
noting a carbon atom bonded to four different atoms or groups.
c.
(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.
Also, asymmetrical.


Origin:
1870–75; a-6 + symmetric

asymmetrically, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
asymmetric or asymmetrical (ˌæsɪˈmɛtrɪk, ˌeɪ-)
 
adj
1.  not symmetrical; lacking symmetry; misproportioned
2.  chem
 a.  (of a molecule) having its atoms and radicals arranged unsymmetrically
 b.  (of a carbon atom) attached to four different atoms or radicals so that stereoisomerism results
 c.  involving chiral molecules: asymmetric synthesis
3.  electrical engineering (of conductors) having different conductivities depending on the direction of current flow, as of diodes
4.  aeronautics having unequal thrust, as caused by an inoperative engine in a twin-engined aircraft
5.  logic, maths symmetric antisymmetric Compare nonsymmetric (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…"
 
asymmetrical or asymmetrical
 
adj
 
asym'metrically or asymmetrical
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
In it, the stone asymmetrically joins strands of baguettes.
Scientists find symmetrical ions perturb bulk water asymmetrically.
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