the locus of all points in space that stimulate points on each eye that yield the same visual direction as each other
Word origin
C18: from Greek horos boundary + optēr, from ops eye
horopter in American English
(həˈrɑptər, hɔ-)
noun
Ophthalmology
a projection of the points in the visual field corresponding to the aggregate of points registering on the two retinas
Derived forms
horopteric (ˌhɔrɑpˈterɪk)
adjective
Word origin
[1695–1705; ‹ Gk hór(os) boundary + opte᷄r one that looks]This word is first recorded in the period 1695–1705. Other words that entered Englishat around the same time include: caisson, nonresistant, thoroughbred, vector, veneer