But when there is a disruption and the muscles do not work together, some form of strabismus, including exotropia, may occur. Other causes may involve the nerves that transmit information from the brain to the muscles, or the part of the brain that directs eye movements.
de facto segregation-segregation (especially in schools) that happens in fact although not required by law. separatism, segregation-a social system that provides separate facilities for minority groups.
DE FACTO, i. e. in deed. A term used to denote a thing actually done; a president of the United States de facto is one in the exercise of the executive power, and is distinguished from one, who being legally entitled to such power is ejected from it; the latter would be a president de jure. In fact, in deed, actually. This phrase is used to characterize an officer, a government, a past action, or a state of affairs that must be accepted for all practical purposes, but is illegal or illegitimate. Thus, an office, position, or status existing under a claim or color of right, such as a de facto corporation.