tachygraphyEnglishOxford New American Dictionarytachygraphy /taˈkiɡrəfē, , tæˈkɪɡrəfi , təˈkiɡrəfē, təˈkɪɡrəfi / ▸ noun stenography or shorthand, especially that of ancient or medieval scribes. – DERIVATIVES tachygrapher ,tachygraphic /ˌtakiˈɡrafik/ adjective,tachygraphical