polycrystallineadj.
/ˌpɒlɪˈkrɪstəlʌɪn/, /ˌpɒlɪˈkrɪstl̩ʌɪn/, U.S. /ˌpɑliˈkrɪstələn/, /ˌpɑliˈkrɪstəˌlaɪn/ Materials Science.
Composed of many crystals or crystallites; having a crystalline structure in which there is a random variation in the orientation of different parts.
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polycrystal1925
polycrystalline1925
1925 Proc. Royal Soc. A. 109 144 The figures for single crystals are higher than for the polycrystalline test piece.
1959 Times Rev. Industry Mar. 32/3 Fine grinding stone..consisting of a sintered polycrystalline ruby material.
1996 Focus Apr. 8/1 The fingernail-thin engines consist of three layers of precisely engineered polycrystalline silicon.
Derivatives
ˌpolycrystaˈllinity n. polycrystalline condition or structure.
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the world > matter > chemistry > crystallography (general) > crystal (general) > [noun] > polycrystallinity
polycrystallinity1955
1955 Rep. Progress Physics 18 233 Research on these materials has been impeded by the anomalous effects of polycrystallinity.
1998 Guardian 12 Feb. (Online section) 10/3 Polycrystallinity is preferable to single crystal diamond, which would easily cleave along crystal planes.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.1925- not a million miles from
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