"double magic lantern producing dissolving views or impressions of three-dimensionality to pictured objects," 1858, from stereo- + Greek optikon, neuter of optikos "pertaining to sight" (from PIE root *okw- "to see").
*stere-
stere
stereo
stereo-
stereophonic
stereoptican
stereoscope
stereoscopic
stereotype
stereotypical
stereotyping
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}