Definition of merohedrism in English:

merohedrism

Pronunciation /ˌmɛrə(ʊ)ˈhiːdrɪz(ə)m/

noun

Crystallography
  • The state or property of being merohedral.

Origin

Late 19th century; earliest use found in Nature: a weekly journal of science. From mero- + -hedrism.