Epitaxial

Of or pertaining to a layer of single crystal material grown on a crystalline substrate, with the same crystal orientation in both regions. See also: Crystal.
Found on http://www.diracdelta.co.uk/science/source/e/p/epitaxial/source.html

epitaxial

the growth of one layer of crystals on another such that they have the same structure
Found on http://www.chemistry-dictionary.com/definition/epitaxial.php
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