(clinical psychology, psychiatry) A severe form of social anxiety disorder characterized by a total inability to speak or communicate orally in certain social settings. The inability to speak is involuntary and persistent, and is not caused by a communication disorder, neurodevelopmental disorder, psychotic disorder, or intellectual disability.

Alternative spelling of nonselective

plural of selection rule

(US, basketball) The Sunday in March on which the teams that participate in the NCAA Division I men's basketball tournament are selected.

plural of selective school

(economics, business, insurance) The process by which the price and quantity of goods or services in a given market is altered due to one party having information that the other party cannot have at reasonable cost.

plural of self-selection

(religion) A process by which heritable traits are given or planned by a higher power, as distinguished from natural selection.

(education) A school that admits students on the basis of their academic achievements.

(firearms) The ability to choose whether a weapon fires automatically or semi-automatically.