WordReference Random House Unabridged Dictionary of American English © 2026
as•tig•mat•o•scope
(as′tig mat′ə skōp′),USA pronunciation n. [Ophthalm.]
- Ophthalmologyan instrument for determining the presence and severity of astigmatism.
- astigmat(ism) + -o- + -scope
'astigmatoscope' also found in these entries (note: many are not synonyms or translations):