Definitions
from The Century Dictionary.
- noun An instrument for measuring the eye, especially for determining the radius of curvature of the cornea.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physiol.) An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physiology An
instrument for measuring the size of areflected image on theconvex surface of thecornea andlens of theeye , by which theircurvature can be ascertained.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek
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Examples
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