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introductory

[in-truh-duhk-tuh-ree]
adjective
  1. serving or used to introduce; preliminary; beginning: an introductory course; an introductory paragraph.
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Sometimes in·tro·duc·tive.

Origin of introductory

1350–1400; Middle English < Late Latin intrōductōrius, equivalent to Latin intrōduc-, variant stem of intrōdūcere (see introduce) + -tōrius -tory1
Related formsin·tro·duc·to·ri·ly, adverbin·tro·duc·to·ri·ness, nounsub·in·tro·duc·tive, adjectivesub·in·tro·duc·to·ry, adjectiveun·in·tro·duc·tive, adjectiveun·in·tro·duc·to·ry, adjective

Synonyms

See preliminary.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for introductive

introductory

adjective
  1. serving as an introduction; preliminary; prefatory
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Derived Formsintroductorily, adverbintroductoriness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for introductive

introductory

adj.

c.1600, from Late Latin introductorius, from introduct-, past participle stem of introducere "to lead in, bring in" (see introduction). Also used in English from c.1400 as a noun meaning "introductory treatise or textbook."

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Online Etymology Dictionary, © 2010 Douglas Harper