MAGISTERIUM

Any exercise of the teaching authority of the pope or bishops, with the exception of a solemn proclamation. Examples of this ordinary teaching authority include the teachings of a local bishop, the pastoral letters of the bishops' conference, the encyclical letters of the pope and the documents of Vatican II (because the Council did not use its authority to define any new dogma of the Catholic faith).

The universal ordinary magisterium is the teaching of all the bishops dispersed throughout the world with the pope. There can be cases of infallible teaching by the ordinary magisterium. Vatican II described the necessary conditions for this to occur: 1) the doctrine must be taught unanimously by all the bishops, 2) absolute assent on the part of all the faithful must be explicitly called for. Examples of such teachings not solemnly defined but taught as divinely revealed include some of the basic articles of the Christian faith: for example, that Jesus is Lord and that God raised him from the dead.

Source:
Youth Update Glossary
St. Anthony Messenger Press, 2002