polytypePronunciation: /ˈpɒlɪtʌɪp/Definition of polytype noun Crystallography any of a number of forms of a crystalline substance which differ only in one of the dimensions of the unit cell. Derivatives polytypicPronunciation: /pɒlɪˈtɪpɪk/ adjective polytypism noun polytype in other Oxford dictionaries Definition of polytype in the US English dictionary
