mnemonic vs reminiscent

mnemonic

adj
  • Of or relating to memory. 

  • Especially of a series of ideas, letters, words, etc.: intended to help in remembering. 

  • Of or relating to mnemonics (“the study of techniques for remembering anything more easily”). 

noun
  • Something (especially a series of ideas, letters, words, etc.) used to help in remembering a thing; a memory aid. 

  • The human-readable, textual form of an assembly language instruction, not including operands. 

reminiscent

adj
  • Of, or relating to reminiscence. 

  • Tending to bring some memory etc. to mind (followed by of) 

  • Suggestive of an earlier event or times. 

  • Remembering; undergoing reminiscence. 

noun
  • One who is addicted to indulging, narrating, or recording reminiscences. 

How often have the words mnemonic and reminiscent occurred in a corpus of books? (source: Google Ngram Viewer )