In`tro*duc"tion (?), n. [L. introductio: cf. F. introduction. See Introduce.]
1.
The act of introducing, or bringing to notice.
2.
The act of formally making persons known to each other; a presentation or making known of one person to another by name; as, the introduction of one stranger to another.
3.
That part of a book or discourse which introduces or leads the way to the main subject, or part; preliminary; matter; preface; proem; exordium.
4.
A formal and elaborate preliminary treatise; specifically, a treatise introductory to other treatises, or to a course of study; a guide; as, an introduction to English literature.
© Webster 1913.