polycrystallinePronunciation: /ˌpɒlɪˈkrɪstəlʌɪn/Definition of polycrystalline adjective (of a metal or other solid) consisting of many crystalline parts that are randomly oriented with respect to each other: a polycrystalline silicon waferpolycrystalline in other Oxford dictionaries Definition of polycrystalline in the US English dictionary
