|rōdə|zänik- noun
Etymology: German rhodizon- (in rhodizonsäure rhodizonic acid, from Greek rhodizein to be rose-red + German säure acid) + English -ic
: a cyclic acid C 6 H 2 O 6 known in an unstable colored enediol form and a colorless more stable tautomeric form but obtained usually in the form of a colored salt (as the red disodium salt by passing carbon monoxide into a solution of sodium in liquid ammonia)