(man-dame-us) Latin for "we command." A writ of mandamus is a court order that requires another court, government official, public body, corporation, or individual to perform a certain act. For example, after a hearing, a court might issue a writ of mandamus forcing a public school to admit certain students on the grounds that the school illegally discriminated against them when it denied them admission. A writ of mandamus is the opposite of an order to cease and desist, or stop doing something (an injunction). Also called a "writ of mandate."