The Collaborative International Dictionary
Communicatory \Com*mu"ni*ca"to*ry\, a. [LL. communicatorius.] Imparting knowledge or information.
Canonical and communicatory letters.
--Barrow.
Wiktionary
a. Whose function is to communicate
WordNet
adj. able or tending to communicate; "was a communicative person and quickly told all she knew"- W.M.Thackeray [syn: communicative] [ant: uncommunicative]
Usage examples of "communicatory".
Originally all creatures of the Solarian home planet had been bicycled, but in time the sapients had lifted one wheel, becoming unicycled, freeing the other to become the communicatory ball.
This was the first intergalactic communicatory contact made, apart from faint, blurred signals of relatively primitive culture.
It does not have the discretion to indulge in galactic contacts—apart from purely communicatory, of course.
He did not need the meat, but warm blood was essential for the communicatory spell.