gnomon gnomology • Gnomonia · · · Info · Definitions · Characters · · gnomon · · Text Latin · · Script 6 · · Length Definitions · · · (noun) indicator provided by the stationary arm whose shadow indicates the time on the sundial. · · Noun Definition 1 Characters · · g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F