mnemonic
From Longman Dictionary of Contemporary EnglishRelated topics: Linguistics, Educationmnemonicmne‧mon‧ic /nɪˈmɒnɪk $ nɪˈmɑː-/ noun [countable] SLSEsomething such as a poem or a sentence that you use to help you remember a rule, a name etc —mnemonic adjectiveExamples from the Corpusmnemonic• The incense is a perfect mnemonic for Zanzibar.• He talked about the effective use of time, mnemonic tricks, and various kinds of tests.Origin mnemonic (1700-1800) Greek mnemonikos, from mimneskesthai “to remember”