"arccosecant" kalma ce da aka fi amfani da ita fiye da "arccosecant". A cikin ilimin lissafi, "arccosecant" shine aikin juzu'i na trigonometric na aikin cosecant, wanda ke yin taswirori daga saitin lambobi na ainihi zuwa tazara [-π/2, 0) U (0, π/2]. Prefix na "arc" yana nuna cewa wannan aiki ne mai jujjuyawar da ke mayar da kusurwa a cikin radians maimakon rabo. Don haka, misali, idan y = csc (x), to x = arccsc (y)A lura cewa "csc" gajarta ce ga "cosecent", wanda shine ma'anar aikin sine.