asymmetry

 
Pronunciation: /eɪˈsɪmɪtri/

noun (plural asymmetries)

[mass noun]
  • lack of equality or equivalence between parts or aspects of something; lack of symmetry: there was an asymmetry between the right and left ears the global system is marked by great asymmetry: the most important goods are controlled by groups in a relatively small number of countries [count noun]: gravitational asymmetries had pulled the sphere out of shape

Origin:

mid 17th century: from Greek asummetria, from a- 'without' + summetria (see symmetry)