horopter

POS

Noun

HYPHEN

ho=rop=ter

top

CIDE DICTIONARY

horopter, n. [Gr. boundary + one who looks.].

The line or surface in which are situated all the points which are seen single while the point of sight, or the adjustment of the eyes, remains unchanged. [1913 Webster]

"The sum of all the points which are seen single, while the point of sight remains unchanged, is called the horopter." [1913 Webster]

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