Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
mnemotechnic is an adjective meaning "of or relating to or involved the practice of aiding the memory". It carries one recorded sense.
of or relating to or involved the practice of aiding the memory
“mnemonic device”
Definitions, synonyms and semantic relations for mnemotechnic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.