Dictionary

polycrystalline

adjective poly·crys·tal·line \-ˈkris-tə-lən\

Definition of POLYCRYSTALLINE

1
:  consisting of crystals variously oriented
2
:  composed of more than one crystal
poly·crys·tal \ˈpä-lē-ˌkris-təl\ noun

First Known Use of POLYCRYSTALLINE

1918

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