introduction
in·tro·duc·tion
noun \ˌin-trə-ˈdək-shən\Definition of INTRODUCTION
: an action of putting in or inserting <introduction of contrast material through the catheter—Scientific American Medicine>
—in·tro·duce \-ˈd(y)üs\ transitive verb, in·tro·duced in·tro·duc·ing








