INTRODUCTORY
introductory, prefatorial, prefatory
(adjective) serving as an introduction or preface
introductory
(adjective) serving to open or begin; “began the slide show with some introductory remarks”
basic, introductory
(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”
Source: WordNet® 3.1
Etymology
Adjective
introductory (not comparable)
Introducing; giving a preview or idea of.
Synonyms
• prefatory
Source: Wiktionary
In`tro*duc"to*ry, a. Etym: [L. itroductorius: cf. F. introductoire.]
Definition: Serving to introduce something else; leading to the main
subject or business; preliminary; prefatory; as, introductory
proceedings; an introductory discourse.
Source: Webster’s Unabridged Dictionary 1913 Edition