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Meaning of horopter

ho•rop•ter

Pronunciation: (hu-rop'tur, hô-), [key]
— n. Ophthalm.
  1. a projection of the points in the visual field corresponding to the aggregate of points registering on the two retinas.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.