Mnemonic (adjective)

1. Intended to assist memory.
2. Relating to memory.

Origin:

From ancient greek μνημονικός (mnēmonikós, “of or relating to memory”), from μνημονεύω (mnēmoneúō, “i remember, recall”).

Examples:

1. The sentence 'Every Good Boy Deserves Fudge' is a mnemonic device to remember the musical notes on the lines of the treble clef.
2. ROYGBIV is a popular mnemonic to remember the colors of the rainbow.
3. The acronym HOMES can be used as a mnemonic to remember the names of the Great Lakes (Huron, Ontario, Michigan, Erie, Superior).
4. The phrase 'Please Excuse My Dear Aunt Sally' is a mnemonic device for remembering the order of operations in mathematics (parentheses, exponents, multiplication and division, addition and subtraction).
5. The keyword method is a mnemonic device in which an individual associates new information with pre-existing knowledge through the use of a keyword.