term:

Session

session n

: a meeting or series of meetings of a body (as a court or legislature) for the transaction of business
;also
: the period between the first meeting of a legislative or judicial body and the final adjournment see also regular session, special session

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.