n.
Pronunciation: ˌ a- ˌ n ī - ˌ s ī - ' k ō -n ē - ə
Function: noun
Etymology: New Latin, from anis- + Greek eik ō n image ― more at ICON
Date: 1934
: a defect of binocular vision in which the two retinal images of an object differ in size
– an · is · ei · kon · ic \ - ' kä-nik \ adjective