agate agastroneuria • agateware · · · Info · Definitions · Characters · · agate · · Text Latin · · Script 5 · · Length Definitions · · · (noun) an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 t latin small letter t U+0074