An Etymological Dictionary of Astronomy and Astrophysics

Lack of symmetry; not symmetrical.

Etymology (EN): Gk. asymmetria “lack of proportion,” from asymmetros “ill-proportioned,” from → a- “not” + symmetros “commensurable, symmetrical.”

Etymology (PE): Nâhamâmuni, from nâ- “not” + hamâmuni “symmetry,” from ham- “together = syn” + -â-, euphonic affix,

• mun “measure” + -i, noun affix.