Source : Webster's Revised Unabridged Dictionary (1913)

Cesarean \Ce*sa"re*an\, Cesarian \Ce*sa"ri*an\, a.
   Same as {C[ae]sarean}, {C[ae]sarian}.

Source : WordNet®

cesarian
     adj : relating to abdominal delivery [syn: {cesarean}, {caesarean},
            {caesarian}]
     n : the delivery of a fetus by surgical incision through the
         abdominal wall and uterus (from the belief that Julius
         Caesar was born that way) [syn: {cesarean delivery}, {caesarean
         delivery}, {cesarean section}, {cesarian section}, {caesarean
         section}, {C-section}, {cesarean}, {caesarean}, {abdominal
         delivery}]