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intercrystalline

American  
[in-ter-kris-tl-in, -ahyn, -een] / ˌɪn tərˈkrɪs tl ɪn, -ˌaɪn, -ˌin /

adjective

Crystallography.
  1. situated or passing between the crystals of a substance.


Etymology

Origin of intercrystalline

First recorded in 1900–05; inter- + crystalline