What is Adjournment?

Legal Definition
In parliamentary procedure, an adjournment ends a meeting. It could be done using a motion to adjourn.

A time for another meeting could be set using the motion to fix the time to which to adjourn. This motion establishes an adjourned meeting.

To adjourn to another time or place means to suspend proceedings until a later stated time or place.
-- Wikipedia
Legal Definition
The dismissal by some court, legislative assembly, or properly authorized officer, of the business before them, either finally, which is called an adjournment sine die, without day; or, to meet again at another time appointed, which is called a temporary adjournment. 2. The constitution of the United States, art. 1, s. 5, 4, directs that "neither house, during the session of congress, shall, without the consent of the other, adjourn for more than three days, nor to any other place, that that in which the two houses shall be sitting,." Vide Com. Dig. h. t.; Vin. Ab. h. t.; Dict. de Jur. h. t.
-- Bouviers Law Dictionary
Legal Definition
A putting off or postponing of business or of a session until another time or place; the act of a court, legislative body, public meeting or officer, by which the session or assembly is dissolved, either temporarily or finally, and the business in hand dismissed from consideration, either definitely or for an interval. If the adjournment is final, it is said to be sine die. In the civil law. A caliing into court; a summoning at an appointed time. Du Cauge,
See also
-- Black's Law Dictionary