Webster's Revised Unabridged Dictionary · 1913

Session

Session , noun

[Latin sessio, from sedere, sessum, to sit: compare French session. See Sit.]

1.
The act of sitting, or the state of being seated. [Archaic]
So much his ascension into heaven and his session at the right hand of God do import. — Hooker
But Viven, gathering somewhat of his mood,... Leaped from her session on his lap, and stood. — Tennyson
2.
The actual sitting of a court, council, legislature, etc., or the actual assembly of the members of such a body, for the transaction of business.
It's fit this royal session do proceed. — Shakespeare
3.
Hence, also, the time, period, or term during which a court, council, legislature, etc., meets daily for business; or, the space of time between the first meeting and the prorogation or adjournment; thus, a session of Parliaments is opened with a speech from the throne, and closed by prorogation. The session of a judicial court is called a term.
It was resolved that the convocation should meet at the beginning of the next session of Parliament. — Macaulay

Sessions, in some of the States, is particularly used as a title for a court of justices, held for granting licenses to innkeepers, etc., and for laying out highways, and the like; it is also the title of several courts of criminal jurisdiction in England and the United States.

Collocations (4)
Church session , the lowest court in the Presbyterian Church, composed of the pastor and a body of elders elected by the members of a particular church, and having the care of matters pertaining to the religious interests of that church, as the admission and dismission of members, discipline, etc.
Court of Session , the supreme civil court of Scotland.
Quarter sessions (Eng.Law) , See under Quarter.
Sessions of the peace , sittings held by justices of the peace. [English]