adj.
Pronunciation: ˌ in-tr ə - ' d ə k-t( ə -)r ē
Function: adjective
Date: 1605
: of, relating to, or being a first step that sets something going or in proper perspective <an introductory course in calculus>
– in · tro · duc · to · ri · ly \ -t( ə -)r ə -l ē \ adverb