What is Presession?

Presession definition and meaning on Dictionary terms:
the sitting together of a court, council, legislature, or the like, for conference or the transaction of business: Congress is now in session.
a single continuous sitting, or period of sitting, of persons so assembled.
a continuous series of sittings or meetings of a court, legislature, or the like.
the period or term during which such a series is held.
sessions, (in English law) the sittings or a sitting of justices in court, usually to deal with minor offenses, grant licenses, etc.
a single continuous course or period of lessons, study, etc., in the work of a day at school: two afternoon sessions a week.

a portion of the year into which instruction is organized at a college or other educational institution.
the governing body of a local Presbyterian church, composed of the pastor who moderates and the elders.
a period of time during which a group of persons meets to pursue a particular activity: A few of the kids got together for a study session.