initiatory

in·i·ti·a·to·ry  (-nsh--tôr, -tr)

adj.

1. Introductory; initial.

2. Tending or used to initiate.

Thesaurus

Adj.

1.

initiatory - serving to set in motion; "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage" initiative, maiden, inaugural, first opening - first or beginning; "the memorable opening bars of Beethoven's Fifth"; "the play's opening scene"