N-COUNT
助記代號，助記口訣(指幫助記憶科學定律、拼寫規則等的單詞、小詩、句子等)
A mnemonic is a word, short poem, or sentence that is intended to help you remember things such as scientific rules or spelling rules. For example, 'i before e, except after c' is a mnemonic to help people remember how to spell words like 'believe' and 'receive'.
例句
...mnemonic devices.
助記工具