{ Pro`pæ*deu"tic (?), Pro`pæ*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.