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Webster 1913 Edition
Prorogation
Proˊro-ga′tion
,Noun.
 [L. 
prorogatio
: cf. F. prorogation
.] 1. 
The act of counting in duration; prolongation. 
[Obs.] 
South.
 2. 
The act of proroguing; the ending of the session of Parliament, and postponing of its business, by the command of the sovereign. 
[Eng.] 
☞ After an adjournment all things continue as they were at the adjournment; whereas, after a prorogation, bill introduced and nut passed are as if they had never been begun at all. 
Mozley & W.
 Webster 1828 Edition
Prorogation
PROROGA'TION
,Noun.
 1.
  Continuance in time or duration; a lengthening or prolongation of time; as the prorogation of something already possessed.  [This use is uncommon.]2.
  In England, the continuance of parliament from one session to another, as an adjournment is a continuance of the session from day to day.  This is the established language with respect to the parliament of Great Britain.  In the United States, the word is, I believe, rarely or never used; adjournment being used not only in its etymological sense, but for prorogation also.Definition 2025
prorogation
prorogation
English
Noun
prorogation (plural prorogations)
- (politics) The period between two sessions of a legislative body. When a legislature or parliament is prorogued, it is still constituted (that is, all members remain as members and a general election is not necessary), but all orders of the body (bills, motions, etc.) are expunged.
- The action of proroging an assembly.