The Collaborative International Dictionary
Propaedeutical
Propaedeutic \Pro`p[ae]*deu"tic\, Propaedeutical \Pro`p[ae]*deu"tic*al\, a. [Gr. ? to teach beforehand; ? before + ? to bring up a child, to educate, teach, fr. ?, ?, a child.] Of, pertaining to, or conveying, preliminary instruction; introductory to any art or science; instructing beforehand.
Wiktionary
propaedeutical
a. (alternative form of propaedeutic English)