Learn how to say Mnemonist correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word mnemonic:
a system such as a pattern of letters, ideas, or associations which assists in remembering something:
the usual mnemonic for star types is O Be A Fine Girl Kiss Me
aiding or designed to aid the memory.
relating to the power of memory.
mid 18th century (as an adjective): via medieval Latin from Greek mnēmonikos, from mnēmōn ‘mindful’
Remember that mnemonic is spelled with an m before the n, although it is not heard when you say the word.
a mnemonic provides a memorable note.