English

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Etymology

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From poly- +‎ crystalline.

Adjective

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polycrystalline (comparative more polycrystalline, superlative most polycrystalline)

  1. Composed of an aggregate of very small crystals in random orientations
    • 1966, Proceedings of the Seventh International Conference on Phenomena in .in Ionized Gases:
      This was revealed only in the experiments of ion bombardment of single crystals, because a polycrystalline material, even though its microcrystallites have a regular structure, in fact behaves like a nonarranged, random system.

Derived terms

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