Dictionary
qua•si•crys•tal
Pronunciation: (kwā"zī-crys'tl, kwā"sī-, kwä"sē-, -zē-), [key]—
n.
a form of solid matter whose atoms are arranged like those of a crystal but assume patterns that do not exactly repeat themselves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.