'Introductory' definitions:

Definition of 'introductory'

From: WordNet
adjective
Serving to open or begin; "began the slide show with some introductory remarks"
adjective
Serving as a base or starting point; "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools"; "an introductory art course" [syn: basic, introductory]
adjective
Serving as an introduction or preface [syn: introductory, prefatorial, prefatory]

Definition of 'Introductory'

From: GCIDE
  • Introductory \In`tro*duc"to*ry\, a. [L. itroductorius: cf. F. introductoire.] Serving to introduce something else; leading to the main subject or business; preliminary; prefatory; as, introductory proceedings; an introductory discourse. [1913 Webster]