e 1 p 3 i 1 t 1 a 1 x 8 y 4
7 letters · 19 points in Scrabble
Meaning
noun growing a crystal layer of one mineral on the crystal base of another mineral in such a manner that its crystalline orientation is the same as that of the substrate
originepi- + -taxy
Etymology from Wiktionary, CC BY-SA 3.0