adj. conveying knowledge, information or instruction.
n. A case in the Finnish language. It expresses the means or the instrument used to perform an action.
the GNU version of the Collaborative International Dictionary of English
adj. Conveying knowledge; serving to instruct or inform.
The Century Dictionary and Cyclopedia
Serving to instruct or inform; conveying knowledge.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. serving to instruct or enlighten or inform
Word Usage
"Randall, is very anxious that the services should be what he calls instructive; that courses, for instance, of sermons should be preached on certain books of the Old Testament, on the Pauline"