Definition of idiomorphism in US English:

idiomorphism

noun

Mineralogy
  • The condition of being idiomorphic.

Origin

Late 19th century; earliest use found in American Naturalist. From idio- + -morphism, after idiomorphic.

Pronunciation

idiomorphism

/ˌɪdɪə(ʊ)ˈmɔːfɪz(ə)m/