obsidian obsessor • obsidianite · · · Info · Definitions · Characters · · obsidian · · Text Latin · · Script 8 · · Length Definitions · · · (noun) acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073