follow Dictionary.com

Hone in vs. home in? What's the difference?

asymmetric

or asymmetrical

[ey-suh-me-trik, as-uh-] /ˌeɪ səˈmɛ trɪk, ˌæs ə-/
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.
  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.
Origin of asymmetric
1870-1875
1870-75; a-6 + symmetric
Related forms
asymmetrically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for asymmetrical
Contemporary Examples
Historical Examples
British Dictionary definitions for asymmetrical

asymmetric

/ˌæsɪˈmɛtrɪk; ˌeɪ-/
adjective
1.
not symmetrical; lacking symmetry; misproportioned
2.
(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 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) (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 (sense 1), antisymmetric, nonsymmetric
Derived Forms
asymmetrically, 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
Cite This Source
Word Origin and History for asymmetrical
adj.

1680s; see asymmetry + -ical. Other forms that have served as an adjective based on asymmetry are asymmetral (1620s), asymmetrous (1660s), and asymmetric (1875); only the last seems to have any currency. Related: Asymmetrically.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
asymmetrical in Medicine

asymmetrical a·sym·met·ri·cal (ā'sĭ-mět'rĭ-kəl) or a·sym·met·ric (-rĭk)
adj.
Abbr. a
Lacking symmetry between two or more like parts; not symmetrical.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for asymmetric

Some English speakers likely know this word

Word Value for asymmetrical

21
24
Scrabble Words With Friends