D defs.my
Entry 2 senses Webster, 1913

Asymmetry

/āsˌ-ĭm'-ət-rē/ · A·sym·me·try · IPA /eɪˈsɪmɪtɹi/
01 n. Want of symmetry, or proportion between the parts of a thing, esp. lack of bilateral symmetry.
  1. 1.
    Want of symmetry, or proportion between the parts of a thing, esp. lack of bilateral symmetry.
  2. 2.
    Incommensurability.(Math.) [Obs.]