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Grinding the edge of a lens to the finished shape and size required, at the same time imparting the desired edge form, e.g. flat, bevelled, etc. This is accomplished with a machine called an edger, either by hand with a grinding wheel or automatically operating from a lens pattern or former. See cribbing; former; glass cutter; glazing.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann