rhyolite rhyodacite • rhyolitic · · · Info · Definitions · Characters · · rhyolite · · Text Latin · · Script 8 · · Length Definitions · · · (noun) very acid volcanic rock. · · Noun Definition 1 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079