Dictionary
ster•e•o•scope
Pronunciation: (ster'ē-u-skōp", stēr'-), [key]—
n.
an optical instrument through which two pictures of the same object, taken from slightly different points of view, are viewed, one by each eye, producing the effect of a single picture of the object, with the appearance of depth or relief.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.