eyepiece eyen • eyepit · · · Info · Definitions · Synonyms · Characters · · eyepiece · · Text Latin · · Script 8 · · Length Definitions · · · (noun) combination of lenses at the viewing end of optical instruments. Synonyms: ocular. · · Noun Definition 1 Synonyms · · · ocular · · Synonym 1 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 p latin small letter p U+0070 y latin small letter y U+0079