WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or involved the practice of aiding the memory
Word Usage
"Firstly, in order to exercise mnemotechnic: secondly, because after an interval of amnesia, when, seated at the central table, about to consult the work in question, he remembered by mnemotechnic the name of the military engagement, Plevna."