ferrocyanic acid Meaning, Definition & Usage

  1. noun a white unstable acid formed from ferrocyanide salts

WordNet

Definitions
  1. (Chem.), a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; called also hydro-ferrocyanic acid, hydrogen ferrocyanide. etc.

Webster 1913