A mnemonic device is a technique or tool that helps you remember information by associating it with something that's easier to remember. It's like a mental shortcut that makes it easier for your brain to remember things. Full definition
In math class, students can use mnemonic devices for memorization, such as Please Excuse My Dear Aunt Sally for the order of operations. (knewton.com)
Kung people of southern Africa gave her insight into cooperation first hand, Polly Wiessner of University of Utah said hunter - gatherers used gifts as mnemonic devices across human groups and used personal adornment as an advertisement of marriage or social status. (scientificamerican.com)
In 1926, Science News - Letter (the precursor to Science News) offered a series of mnemonic devices to help readers recall specific information. (sciencenews.org)