'Scotomy' definitions:

Definition of 'Scotomy'

From: GCIDE

Scotomy \Scot"o*my\, n. [NL. scotomia, from Gr. ? dizziness, fr. ? to darken, fr. sko`tos darkness: cf. F. scotomie.]
1. Dizziness with dimness of sight. [Obs.] --Massinger. [1913 Webster]
2. (Med.) Obscuration of the field of vision due to the appearance of a dark spot before the eye. [1913 Webster]