Definition of prorogation in US English:

prorogation

noun

  • The action of discontinuing a session of a parliament or other legislative assembly without dissolving it.

    ‘the government's loss of control necessitated the prorogation of parliament’
    count noun ‘politically motivated prorogations’

Pronunciation

prorogation

/ˌprōrəˈɡāSH(ə)n//ˌproʊrəˈɡeɪʃ(ə)n/