n. [ L. ] A Roman emperor, as being the successor of Augustus Cæsar. Hence, a kaiser, or emperor of Germany, or any emperor or powerful ruler. See Kaiser, Kesar, Tsar. [ 1913 Webster ]

Marlborough anticipated the day when he would be servilely flattered and courted by Cæsar on one side and by Louis the Great on the other. Macaulay. [ 1913 Webster ]

n. same as caesarean section. [ WordNet 1.5 ]

n. (Surg.), the operation of taking a child from the womb by cutting through the walls of the abdomen and uterus; -- so called because Julius Cæsar is reported to have been brought into the world by such an operation; -- called also caesarean.
Syn. -- cesarean section, cesarian section, caesarean section, caesarian section, C-section, cesarean, cesarian. [ 1913 Webster ]

n. [ Cf. F. Césarisme. ] A system of government in which unrestricted power is exercised by a single person, to whom, as Cæsar or emperor, it has been committed by the popular will; imperialism; also, advocacy or support of such a system of government. [ 1913 Webster ]

☞ This word came into prominence in the time of Napoleon III., as an expression of the claims and political views of that emperor, and of the politicians of his court. [ 1913 Webster ]

n. The doctrine that the state is supreme over the church in ecclesiastical matters.
Syn. -- Erastianism, Byzantinism. [ WordNet 1.5 ]