stereoacuity
noun
ste·reo·acui·ty
| \ ˌster-ē-ō-ə-ˈkyü-ət-ē, ˌstir-
\
\
plural stereoacuities
Medical Definition of stereoacuity
: the ability to detect differences in distance using stereoscopic cues that is measured by the smallest difference in the images presented to the two eyes that can be detected reliably — compare grating acuity, hyperacuity, vernier acuity